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Cushion|Natural|GIA

3.51ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 16860130

Certificate GIA 16860130

Diamond specifications and retailer prices

From HK$365,050 HKD
As of November 5, 2026
Save HK$62,905 HKD (15%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$427,955 HKD at Yorxs · As of November 6, 2026
View at Yorxs

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 16860130. Listed at 5 retailers as of November 5, 2026, with prices from HK$365,050 to HK$427,955, a HK$62,905 spread on the same certified stone. Yorxs lists it at HK$427,955. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.51
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 16860130
Dimensions8.65 × 7.90 × 5.49 mm
L/W Ratio1.09
Top View
8.65 mm7.90 mm3.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 16860130
Side View
Table 63.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 69.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$365,050 HKD|Low: HK$365,050 HKD|High: HK$429,008 HKD|Avg: HK$388,897 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 1HK$365,050 HKD
Retailer 2HK$379,644 HKD
Retailer 3HK$379,644 HKD
Retailer 4HK$392,340 HKD
YorxsHK$427,955 HKD

21 data points across 5 retailers

5 retailersHK$365,050 HKD to HK$427,955 HKD

B
Cheapest Retailer
-
HK$365,050 HKD
B
Retailer 2
-
HK$379,644 HKD
View
B
Retailer 3
-
HK$379,644 HKD
View
B
Retailer 4
-
HK$392,340 HKD
View
Most Expensive
B
Yorxs
241625415 · Nov 6
HK$427,955 HKD
€52,004 EUR
View
4 more retailers have this diamond
Prices start from HK$365,050 HKDSave up to HK$62,905 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
3.51ct Cushion
HK$365,050 HKD