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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 7556576837

Certificate GIA 7556576837

Diamond specifications and retailer prices

From HK$23,802 HKD
As of November 1, 2026
Save HK$29,110 HKD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$52,912 HKD at MOH London · As of November 2, 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 H 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 7556576837. Listed at 10 retailers as of November 1, 2026, with prices from HK$23,802 to HK$52,912, a HK$29,110 spread on the same certified stone. MOH London lists it at HK$52,912. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.76°
OriginNatural
Grading LabGIA
CertificateGIA 7556576837
Dimensions7.50 × 5.88 × 4.11 mm
L/W Ratio1.28
Key to symbols
Crystal, Cloud, Feather
Top View
7.50 mm5.88 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556576837
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 35.76°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 1
Current: HK$52,912 HKD|Low: HK$23,601 HKD|High: HK$56,021 HKD|Avg: HK$34,306 HKD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6HK$23,802 HKD
Retailer 4HK$27,975 HKD
Retailer 5HK$28,646 HKD
Retailer 2HK$29,810 HKD
Retailer 8HK$30,018 HKD
Retailer 9HK$32,828 HKD
Retailer 7HK$34,444 HKD
Retailer 3HK$36,933 HKD
MOH LondonHK$52,912 HKD

33 data points across 9 retailers

10 retailersHK$23,802 HKD to HK$52,912 HKD

A
Cheapest Retailer
-
HK$23,802 HKD
A
Retailer 2
-
HK$27,975 HKD
€3,396 EUR
View
A
Retailer 3
-
HK$28,646 HKD
$3,651 USD
View
A
Retailer 4
-
HK$29,810 HKD
£2,992 GBP
View
A
Retailer 5
-
HK$30,018 HKD
SGD 5,170 SGD
View
A
Retailer 6
-
HK$32,828 HKD
$4,184 USD
View
Final sale: no returns
A
Retailer 7
-
HK$34,444 HKD
$4,390 USD
View
B+
Retailer 8
-
HK$35,843 HKD
A$7,028 AUD
View
A
Retailer 9
-
HK$36,933 HKD
€4,483 EUR
View
Most Expensive
B+
MOH London
43437E97D · Nov 2
HK$52,912 HKD
£5,310 GBP
View
9 more retailers have this diamond
Prices start from HK$23,802 HKDSave up to HK$29,110 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$23,802 HKD