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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 1232947260

Certificate GIA 1232947260

Diamond specifications and retailer prices

From HK$26,177 HKD
As of November 6, 2026
Save HK$30,458 HKD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$56,635 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1232947260. Listed at 9 retailers as of November 4, 2026, with prices from HK$26,177 to HK$56,635, a HK$30,458 spread on the same certified stone. MOH London lists it at HK$56,635. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.31°
OriginNatural
Grading LabGIA
CertificateGIA 1232947260
Dimensions7.81 × 5.96 × 4.04 mm
L/W Ratio1.31
Key to symbols
Feather, Needle, Pinpoint, Cloud
Top View
7.81 mm5.96 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232947260
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 35.31°Culet: NoneDepth 67.8%

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$56,635 HKD|Low: HK$26,177 HKD|High: HK$62,359 HKD|Avg: HK$38,401 HKD|-9.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7HK$26,177 HKD
Retailer 5HK$30,354 HKD
Retailer 8HK$31,883 HKD
Retailer 4HK$33,254 HKD
Retailer 2HK$33,646 HKD
Retailer 6HK$37,964 HKD
Retailer 3HK$40,731 HKD
MOH LondonHK$56,635 HKD

34 data points across 8 retailers

9 retailersHK$26,177 HKD to HK$56,635 HKD

A
Cheapest Retailer
-
HK$26,177 HKD
A
Retailer 2
-
HK$30,354 HKD
View
A
Retailer 3
-
HK$31,883 HKD
View
A
Retailer 4
-
HK$33,254 HKD
View
A
Retailer 5
-
HK$33,646 HKD
View
B+
Retailer 6
-
HK$37,964 HKD
View
B+
Retailer 7
-
HK$38,960 HKD
View
B+
Retailer 8
-
HK$40,731 HKD
View
Most Expensive
B
MOH London
8D2B6642B · Nov 4
HK$56,635 HKD
£5,690 GBP
View
8 more retailers have this diamond
Prices start from HK$26,177 HKDSave up to HK$30,458 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$26,177 HKD