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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2556256739

Certificate GIA 2556256739

Diamond specifications and retailer prices

From HK$27,016 HKD
$3,443 USD
As of October 31, 2026
Save HK$21,402 HKD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$50,347 HKD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

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 2556256739. Listed at 14 retailers as of October 31, 2026, with a 79% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556256739
Dimensions6.77 × 6.05 × 4.21 mm
L/W Ratio1.12
Culet sizeNone
Top View
6.77 mm6.05 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556256739
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.6%

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: Oct 31
Current: HK$33,095 HKD|Low: HK$27,016 HKD|High: HK$53,281 HKD|Avg: HK$36,364 HKD|-8.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 2, 2026
Retailer 10HK$27,016 HKD
Retailer 9HK$27,454 HKD
Retailer 7HK$27,521 HKD
Retailer 8HK$28,866 HKD
Retailer 4HK$29,501 HKD
Retailer 5HK$31,494 HKD
Retailer 1HK$33,095 HKD
Retailer 12HK$34,335 HKD
Retailer 2HK$34,700 HKD
Retailer 6HK$42,157 HKD
Retailer 11HK$45,562 HKD
Retailer 3HK$48,418 HKD
Wholesale Diamonds DirectHK$50,347 HKD

33 data points across 13 retailers

14 retailersHK$27,016 HKD to HK$48,418 HKD

A
Cheapest Retailer
-
HK$27,016 HKD
$3,443 USD
A
Retailer 2
-
HK$27,454 HKD
$3,499 USD
View
Retailer 3
-
HK$27,521 HKD
SGD 4,740 SGD
View
Price last confirmed 9 days ago
A
Retailer 4
-
HK$28,866 HKD
$3,679 USD
View
A
Retailer 5
-
HK$29,501 HKD
SGD 5,081 SGD
View
A
Retailer 6
-
HK$31,494 HKD
£3,161 GBP
View
A
Retailer 7
-
HK$33,095 HKD
$4,218 USD
View
A
Retailer 8
-
HK$34,335 HKD
$4,376 USD
View
A
Retailer 9
-
HK$34,700 HKD
$4,423 USD
View
A
Retailer 10
-
HK$35,198 HKD
$4,486 USD
View
A
Retailer 11
-
HK$42,157 HKD
$5,373 USD
View
B+
Retailer 12
-
HK$45,562 HKD
$5,807 USD
View
B+
Retailer 13
-
HK$48,418 HKD
$6,171 USD
View
Most Expensive
Wholesale Diamonds Direct
444917139 · Oct 23
HK$50,347 HKD
$6,417 USD
View
Price last confirmed 10 days ago
13 more retailers have this diamond
Prices start from HK$27,016 HKDSave up to HK$21,402 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$27,016 HKD