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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2557386199

Certificate GIA 2557386199

Diamond specifications and retailer prices

From HK$26,177 HKD
As of November 6, 2026
Save HK$29,971 HKD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$56,148 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 G 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 2557386199. Listed at 10 retailers as of November 4, 2026, with prices from HK$26,177 to HK$56,148, a HK$29,971 spread on the same certified stone. MOH London lists it at HK$56,148. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.68°
OriginNatural
Grading LabGIA
CertificateGIA 2557386199
Dimensions7.59 × 5.90 × 4.09 mm
L/W Ratio1.29
Key to symbols
Crystal, Needle
Top View
7.59 mm5.90 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557386199
Side View
Table 66.0%CrownGirdle: THK-VTKPavilion 36.68°Culet: NoneDepth 69.3%

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$56,148 HKD|Low: HK$26,083 HKD|High: HK$63,802 HKD|Avg: HK$38,480 HKD|-11.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6HK$26,177 HKD
Retailer 5HK$30,574 HKD
Retailer 7HK$31,404 HKD
Retailer 4HK$32,392 HKD
Retailer 2HK$32,549 HKD
Retailer 8HK$37,651 HKD
Retailer 3HK$40,402 HKD
Retailer 9HK$40,449 HKD
MOH LondonHK$56,148 HKD

33 data points across 9 retailers

10 retailersHK$26,177 HKD to HK$56,148 HKD

A
Cheapest Retailer
-
HK$26,177 HKD
A
Retailer 2
-
HK$30,574 HKD
View
Price last confirmed 3 days ago
A
Retailer 3
-
HK$31,404 HKD
View
A
Retailer 4
-
HK$32,392 HKD
View
A
Retailer 5
-
HK$32,549 HKD
View
A
Retailer 6
-
HK$37,651 HKD
View
A
Retailer 7
-
HK$40,402 HKD
View
A
Retailer 8
-
HK$40,449 HKD
View
Final sale: no returns
B+
Retailer 9
-
HK$40,739 HKD
View
Most Expensive
B+
MOH London
A5213C48E · Nov 4
HK$56,148 HKD
£5,641 GBP
View
9 more retailers have this diamond
Prices start from HK$26,177 HKDSave up to HK$29,971 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