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Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 7551678990

Certificate GIA 7551678990

Diamond specifications and retailer prices

From HK$23,622 HKD
As of November 6, 2026
Save HK$24,822 HKD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$48,444 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I 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 7551678990. Listed at 11 retailers as of November 4, 2026, with prices from HK$23,622 to HK$48,444, a HK$24,822 spread on the same certified stone. MOH London lists it at HK$48,444. 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

1.51
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.63°
Pavilion angle36.04°
OriginNatural
Grading LabGIA
CertificateGIA 7551678990
Dimensions5.96 × 7.47 × 4.11 mm
L/W Ratio1.25
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
5.96 mm7.47 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551678990
Side View
Table 65.0%Crown 37.63°Girdle: Very ThickPavilion 36.04°Culet: NoneDepth 69.0%

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$48,444 HKD|Low: HK$21,631 HKD|High: HK$50,673 HKD|Avg: HK$32,047 HKD|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5HK$23,622 HKD
Retailer 6HK$24,186 HKD
Retailer 4HK$25,142 HKD
Retailer 2HK$26,146 HKD
Retailer 11HK$27,439 HKD
Retailer 7HK$27,478 HKD
Retailer 9HK$29,139 HKD
Retailer 8HK$29,461 HKD
Retailer 3HK$29,939 HKD
Retailer 10HK$30,495 HKD
MOH LondonHK$48,444 HKD

42 data points across 11 retailers

11 retailersHK$23,622 HKD to HK$48,444 HKD

A
Cheapest Retailer
-
HK$23,622 HKD
A
Retailer 2
-
HK$24,186 HKD
View
A
Retailer 3
-
HK$25,142 HKD
View
A
Retailer 4
-
HK$26,146 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$27,439 HKD
View
A
Retailer 6
-
HK$27,478 HKD
View
A
Retailer 7
-
HK$28,309 HKD
View
A
Retailer 8
-
HK$29,139 HKD
View
A
Retailer 9
-
HK$29,461 HKD
View
A
Retailer 10
-
HK$30,495 HKD
View
Most Expensive
B
MOH London
ADAA463D8 · Nov 4
HK$48,444 HKD
£4,867 GBP
View
10 more retailers have this diamond
Prices start from HK$23,622 HKDSave up to HK$24,822 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
1.51ct Cushion
HK$23,622 HKD