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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 2457470388

Certificate GIA 2457470388

Diamond specifications and retailer prices

From HK$38,085 HKD
$4,854 USD
As of November 2, 2026
Save HK$14,556 HKD (28%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$57,724 HKD at GemsNY · As of October 8, 2026
View at GemsNY

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2457470388. Listed at 15 retailers as of November 2, 2026, with a 38% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2457470388
Dimensions6.85 × 6.36 × 4.36 mm
L/W Ratio1.08
Top View
6.85 mm6.36 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2457470388
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.6%

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$57,724 HKD|Low: HK$36,610 HKD|High: HK$57,724 HKD|Avg: HK$45,955 HKD|+3.7%
GemsNY
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 7HK$38,085 HKD
Retailer 6HK$38,728 HKD
Retailer 11HK$40,141 HKD
Retailer 8HK$40,421 HKD
Retailer 3HK$41,372 HKD
Retailer 10HK$43,173 HKD
Retailer 9HK$45,711 HKD
Retailer 13HK$46,783 HKD
Retailer 5HK$46,935 HKD
Retailer 4HK$50,137 HKD
Retailer 12HK$50,137 HKD
Retailer 14HK$51,784 HKD
Retailer 2HK$52,641 HKD
GemsNYHK$57,724 HKD

39 data points across 14 retailers

15 retailersHK$38,085 HKD to HK$52,641 HKD

A
Cheapest Retailer
-
HK$38,085 HKD
$4,854 USD
B+
Retailer 2
-
HK$38,728 HKD
$4,936 USD
View
Retailer 3
-
HK$39,761 HKD
$5,068 USD
View
Price last confirmed 97 days ago
B+
Retailer 4
-
HK$40,421 HKD
$5,152 USD
View
Retailer 5
-
HK$41,372 HKD
$5,273 USD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
HK$41,798 HKD
CA$7,399 CAD
View
B+
Retailer 7
-
HK$43,173 HKD
$5,502 USD
View
B
Retailer 8
-
HK$45,711 HKD
$5,826 USD
View
Retailer 9
-
HK$46,783 HKD
$5,963 USD
View
Price last confirmed 26 days ago
B
Retailer 10
-
HK$46,935 HKD
$5,982 USD
View
B
Retailer 11
-
HK$50,137 HKD
$6,390 USD
View
B
Retailer 12
-
HK$50,137 HKD
$6,390 USD
View
B
Retailer 13
-
HK$51,784 HKD
$6,600 USD
View
B
Retailer 14
-
HK$52,641 HKD
£5,283 GBP
View
Most Expensive
GemsNY
N209508 · Oct 8
HK$57,724 HKD
$7,357 USD
View
Price last confirmed 25 days ago
14 more retailers have this diamond
Prices start from HK$38,085 HKDSave up to HK$14,556 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$38,085 HKD