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Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2231926496

Certificate GIA 2231926496

Diamond specifications and retailer prices

From HK$44,401 HKD
$5,659 USD
As of November 2, 2026
Save HK$40,626 HKD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$85,027 HKD at MOH London · As of November 1, 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 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 2231926496. Listed at 14 retailers as of November 1, 2026, with prices from HK$44,401 to HK$85,027, a HK$40,626 spread on the same certified stone. MOH London lists it at HK$85,027. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Pavilion angle35.83°
OriginNatural
Grading LabGIA
CertificateGIA 2231926496
Dimensions7.45 × 5.87 × 4.09 mm
L/W Ratio1.27
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
7.45 mm5.87 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2231926496
Side View
Table 62.0%CrownGirdle: THK-VTKPavilion 35.83°Culet: NoneDepth 69.8%

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 2
Current: HK$85,027 HKD|Low: HK$44,252 HKD|High: HK$86,044 HKD|Avg: HK$59,764 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9HK$44,401 HKD
Retailer 5HK$51,015 HKD
Retailer 8HK$51,015 HKD
Retailer 10HK$51,157 HKD
Retailer 3HK$57,517 HKD
Retailer 7HK$58,304 HKD
Retailer 6HK$58,819 HKD
Retailer 2HK$66,649 HKD
Retailer 4HK$74,956 HKD
MOH LondonHK$85,027 HKD

44 data points across 10 retailers

14 retailersHK$44,401 HKD to HK$85,027 HKD

A
Cheapest Retailer
-
HK$44,401 HKD
$5,659 USD
B+
Retailer 2
-
HK$48,199 HKD
$6,143 USD
View
B+
Retailer 3
-
HK$48,277 HKD
$6,153 USD
View
B+
Retailer 4
-
HK$48,871 HKD
$6,229 USD
View
B+
Retailer 5
-
HK$51,015 HKD
$6,502 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$51,015 HKD
$6,502 USD
View
B+
Retailer 7
-
HK$51,157 HKD
$6,520 USD
View
B+
Retailer 8
-
HK$57,517 HKD
£5,772 GBP
View
B+
Retailer 9
-
HK$58,304 HKD
$7,431 USD
View
Retailer 10
-
HK$58,819 HKD
A$11,533 AUD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
HK$66,649 HKD
€8,090 EUR
View
Retailer 12
-
HK$67,218 HKD
$8,567 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
HK$74,956 HKD
ZAR 154,335 ZAR
View
Most Expensive
B
MOH London
75DE28E9A · Nov 1
HK$85,027 HKD
£8,533 GBP
View
13 more retailers have this diamond
Prices start from HK$44,401 HKDSave up to HK$40,626 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$44,401 HKD