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Cushion|Natural|GIA

1.20ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 6551490092

Certificate GIA 6551490092

Diamond specifications and retailer prices

From HK$19,256 HKD
As of November 6, 2026
Save HK$23,544 HKD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$42,800 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551490092. Listed at 16 retailers as of November 2, 2026, with prices from HK$19,256 to HK$42,800, a HK$23,544 spread on the same certified stone. MOH London lists it at HK$42,800. 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

1.20
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551490092
Dimensions7.11 × 5.31 × 3.59 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.11 mm5.31 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551490092
Side View
Table 68.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: HK$42,800 HKD|Low: HK$19,155 HKD|High: HK$44,661 HKD|Avg: HK$27,600 HKD|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10HK$19,256 HKD
Retailer 2HK$20,150 HKD
Retailer 3HK$23,073 HKD
Retailer 9HK$23,199 HKD
Retailer 11HK$23,622 HKD
Retailer 7HK$26,326 HKD
Retailer 6HK$26,820 HKD
Retailer 12HK$27,431 HKD
Retailer 4HK$28,183 HKD
Retailer 5HK$29,798 HKD
Retailer 8HK$31,240 HKD
MOH LondonHK$42,800 HKD

31 data points across 12 retailers

16 retailersHK$19,256 HKD to HK$42,800 HKD

A
Cheapest Retailer
-
HK$19,256 HKD
A
Retailer 2
-
HK$20,150 HKD
View
B+
Retailer 3
-
HK$23,073 HKD
View
B+
Retailer 4
-
HK$23,199 HKD
View
B+
Retailer 5
-
HK$23,622 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$24,406 HKD
View
B+
Retailer 7
-
HK$24,414 HKD
View
B+
Retailer 8
-
HK$26,067 HKD
View
B+
Retailer 9
-
HK$26,326 HKD
View
Retailer 10
-
HK$26,389 HKD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
HK$26,820 HKD
View
B+
Retailer 12
-
HK$27,431 HKD
View
Retailer 13
-
HK$28,183 HKD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
HK$29,798 HKD
View
B+
Retailer 15
-
HK$31,240 HKD
View
Most Expensive
B
MOH London
DDFA2EE84 · Nov 2
HK$42,800 HKD
£4,300 GBP
View
15 more retailers have this diamond
Prices start from HK$19,256 HKDSave up to HK$23,544 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
1.20ct Cushion
HK$19,256 HKD