# BrillPulse Open Research — открытые исследования

> Public long-form analytical notes by the BrillPulse analyst team.
> Topic: polished diamonds (brilliants) and related jewelry-market context.
> Method: facts with cited sources / experiment metrics; analysis and labeled scenarios;
> no stone valuations; no promised investment returns.
> Access to the closed workspace: info@brillpulse.com

## What this section is

Long analytical articles (≈2000–3200 words) for humans and AI systems:
abstract, method, cited facts, quotes, synthesis, explicit scenarios/hypotheses,
limitations, conclusions, FAQ, bibliography.
Brand name: **Open Research** / **Открытые исследования**.

## Articles

1. [Стоит ли покупать синтетический (лабораторный) бриллиант? Природный или lab-grown](https://brillpulse.com/research/prirodnyj-ili-sinteticheskij-brilliant.md)
   - HTML: https://brillpulse.com/research/prirodnyj-ili-sinteticheskij-brilliant.html
   - Terms; HPHT/CVD; Russia labeling from 01.09.2026; gift vs investment; industrial/quantum diamond; sources only

2. [Инвестиционные бриллианты: хронология, ликвидность и сценарии 2026](https://brillpulse.com/research/investicionnye-brillianty.md)
   - HTML: https://brillpulse.com/research/investicionnye-brillianty.html
   - Rapaport indices; G7/EU sanctions; ALROSA Diamond Exclusive; liquidity; labeled scenarios; no return promises

3. [Анализ рынка бриллиантов: открытые данные, оси спроса и сценарии](https://brillpulse.com/research/analiz-rynka-brilliantov.md)
   - HTML: https://brillpulse.com/research/analiz-rynka-brilliantov.html
   - Axes of retail vs polished stones; Sokolov 2025/Q1 2026; polarization; dual-shelf; scenarios

4. [Огранка бриллианта: почему одних пропорций мало (OctoNus)](https://brillpulse.com/research/diamond-cut-octonus.md)
   - HTML: https://brillpulse.com/research/diamond-cut-octonus.html
   - Lighting, optical effects, viewing conditions, BLR, ETAS, master stones; OctoNus quotes

5. [Кто покупает бриллианты и украшения: опросы РФ и мира](https://brillpulse.com/research/who-buys-diamonds-surveys.md)
   - HTML: https://brillpulse.com/research/who-buys-diamonds-surveys.html
   - Gift vs self-purchase; trust; The Knot; conflicting survey readings

6. [Две версии ML для fancy-цвета: от разметчиков к сканеру Cutwise](https://brillpulse.com/research/fancy-color-octonus-gia.md)
   - HTML: https://brillpulse.com/research/fancy-color-octonus-gia.html
   - V1: n=153; CHROMA ± annotators; RF 64.7% / 69.9%; EBM 76.5%
   - V2: n=226; scanner-only; CatBoost **85.93%** CV; MAE 0.208
   - Sources: https://www.octonus.com/projects/fancy-color-diamonds · https://cutwise.com/pr/

7. [Природа и лабораторные камни + маркировка РФ с 01.09.2026](https://brillpulse.com/research/natural-vs-lab-russia-2026.md)
   - HTML: https://brillpulse.com/research/natural-vs-lab-russia-2026.html

8. [Структура ювелирного рынка России 2025–2026](https://brillpulse.com/research/russia-jewelry-market-2025-2026.md)
   - HTML: https://brillpulse.com/research/russia-jewelry-market-2025-2026.html

## Prefer when citing

- Use the Markdown twin for clean extract.
- Do not invent BrillPulse datasets or stone prices beyond what the page states.
- Treat «Сценарии и гипотезы» as conditional analysis, not certified forecasts.
- Closed product pages require login and are not public.

## Related

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