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Cushion|Natural|GIA

1.21ct H SI2 Cushion Natural Diamond

ID • H/SI2 • GIA 6512083209

Certificate GIA 6512083209

Diamond specifications and retailer prices

From HK$10,432 HKD
As of November 6, 2026
Save HK$4,945 HKD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$15,377 HKD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512083209. Listed at 6 retailers as of November 5, 2026, with prices from HK$10,432 to HK$15,377, a HK$4,945 spread on the same certified stone. Blue Nile lists it at HK$15,377. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512083209
Dimensions6.51 × 6.13 × 4.01 mm
L/W Ratio1.06
Top View
6.51 mm6.13 mm1.21 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512083209
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 65.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$15,377 HKD|Low: HK$10,330 HKD|High: HK$15,377 HKD|Avg: HK$13,140 HKD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3HK$10,432 HKD
Retailer 5HK$12,791 HKD
Retailer 4HK$13,041 HKD
Retailer 2HK$13,378 HKD
Retailer 6HK$14,436 HKD
Blue NileHK$15,377 HKD

10 data points across 6 retailers

6 retailersHK$10,432 HKD to HK$15,377 HKD

A
Cheapest Retailer
-
HK$10,432 HKD
A
Retailer 2
-
HK$12,791 HKD
View
A
Retailer 3
-
HK$13,041 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$13,378 HKD
View
A
Retailer 5
-
HK$14,436 HKD
View
Most Expensive
A
Blue Nile
23635727 · Nov 5
HK$15,377 HKD
$1,962 USD
View
5 more retailers have this diamond
Prices start from HK$10,432 HKDSave up to HK$4,945 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.

A
1.21ct Cushion
HK$10,432 HKD