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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1425256232

Certificate GIA 1425256232

Diamond specifications and retailer prices

From HK$36,327 HKD
$4,630 USD
As of November 2, 2026
Save HK$34,700 HKD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$71,027 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 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 1425256232. Listed at 20 retailers as of November 1, 2026, with prices from HK$36,327 to HK$71,027, a HK$34,700 spread on the same certified stone. MOH London lists it at HK$71,027. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425256232
Dimensions6.16 × 6.04 × 4.61 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
6.16 mm6.04 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425256232
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 76.4%

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$71,027 HKD|Low: HK$34,931 HKD|High: HK$71,884 HKD|Avg: HK$49,600 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10HK$36,327 HKD
Retailer 6HK$38,407 HKD
Retailer 8HK$38,422 HKD
Retailer 11HK$40,878 HKD
Retailer 7HK$43,679 HKD
Retailer 4HK$46,253 HKD
Retailer 9HK$47,911 HKD
Retailer 2HK$52,668 HKD
Retailer 5HK$59,235 HKD
Retailer 3HK$69,854 HKD
MOH LondonHK$71,027 HKD

45 data points across 11 retailers

20 retailersHK$36,327 HKD to HK$71,027 HKD

A
Cheapest Retailer
-
HK$36,327 HKD
$4,630 USD
A
Retailer 2
-
HK$37,661 HKD
$4,800 USD
View
A
Retailer 3
-
HK$38,093 HKD
$4,855 USD
View
A
Retailer 4
-
HK$38,407 HKD
$4,895 USD
View
A
Retailer 5
-
HK$38,422 HKD
$4,897 USD
View
Final sale: no returns
A
Retailer 6
-
HK$38,578 HKD
$4,917 USD
View
A
Retailer 7
-
HK$40,644 HKD
CA$7,195 CAD
View
A
Retailer 8
-
HK$40,878 HKD
$5,210 USD
View
B+
Retailer 9
-
HK$41,019 HKD
$5,228 USD
View
B+
Retailer 10
-
HK$43,155 HKD
$5,500 USD
View
B+
Retailer 11
-
HK$43,679 HKD
$5,567 USD
View
B+
Retailer 12
-
HK$46,041 HKD
$5,868 USD
View
B+
Retailer 13
-
HK$46,253 HKD
£4,642 GBP
View
Retailer 14
-
HK$47,911 HKD
A$9,394 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
HK$52,668 HKD
€6,393 EUR
View
Retailer 16
-
HK$53,165 HKD
$6,776 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
HK$54,609 HKD
$6,960 USD
View
B+
Retailer 18
-
HK$59,235 HKD
ZAR 121,964 ZAR
View
B
Retailer 19
-
HK$69,854 HKD
$8,903 USD
View
Most Expensive
B
MOH London
C97E3DB6C · Nov 1
HK$71,027 HKD
£7,128 GBP
View
19 more retailers have this diamond
Prices start from HK$36,327 HKDSave up to HK$34,700 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$36,327 HKD