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Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 2567210753

Certificate GIA 2567210753

Diamond specifications and retailer prices

From HK$17,935 HKD
$2,286 USD
As of October 30, 2026
Save HK$53,625 HKD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$71,561 HKD at William & Sons Jewelers · As of November 2, 2026
View at William & Sons Jewelers

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I 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 2567210753. Listed at 17 retailers as of October 30, 2026, with prices from HK$17,935 to HK$71,561, a HK$53,625 spread on the same certified stone. William & Sons Jewelers lists it at HK$71,561. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle34°
OriginNatural
Grading LabGIA
CertificateGIA 2567210753
Dimensions6.56 × 6.36 × 4.30 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Top View
6.56 mm6.36 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2567210753
Side View
Table 63.0%Crown 38.5°Girdle: THN-STKPavilion 34°Culet: NoneDepth 67.6%

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 30
Current: HK$27,663 HKD|Low: HK$17,935 HKD|High: HK$92,477 HKD|Avg: HK$29,359 HKD|+1.9%
Retailer 1
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
Retailer 15
Retailer 16
William & Sons Jewelers
November 2, 2026
Retailer 16HK$17,935 HKD
Retailer 14HK$19,081 HKD
Retailer 6HK$19,659 HKD
Retailer 4HK$19,850 HKD
Retailer 11HK$20,375 HKD
Retailer 13HK$21,066 HKD
Retailer 12HK$21,066 HKD
Retailer 5HK$24,612 HKD
Retailer 8HK$25,153 HKD
Retailer 15HK$25,969 HKD
Retailer 2HK$26,832 HKD
Retailer 1HK$27,663 HKD
Retailer 3HK$27,695 HKD
Retailer 9HK$29,641 HKD
Retailer 10HK$29,829 HKD
Retailer 7HK$42,457 HKD
William & Sons JewelersHK$71,561 HKD

27 data points across 17 retailers

17 retailersHK$17,935 HKD to HK$71,561 HKD

A
Cheapest Retailer
-
HK$17,935 HKD
$2,286 USD
A
Retailer 2
-
HK$19,081 HKD
View
A
Retailer 3
-
HK$19,850 HKD
$2,530 USD
View
A
Retailer 4
-
HK$20,375 HKD
$2,597 USD
View
A
Retailer 5
-
HK$21,066 HKD
$2,685 USD
View
A
Retailer 6
-
HK$21,066 HKD
A$4,131 AUD
View
A
Retailer 7
-
HK$24,612 HKD
$3,137 USD
View
Retailer 8
-
HK$25,153 HKD
$3,206 USD
View
Price last confirmed 25 days ago
A
Retailer 9
-
HK$25,969 HKD
$3,310 USD
View
Retailer 10
-
HK$26,091 HKD
SGD 4,494 SGD
View
Price last confirmed 24 days ago
A
Retailer 11
-
HK$26,832 HKD
$3,420 USD
View
A
Retailer 12
-
HK$27,663 HKD
€3,358 EUR
View
A
Retailer 13
-
HK$27,695 HKD
$3,530 USD
View
B+
Retailer 14
-
HK$29,641 HKD
£2,975 GBP
View
A
Retailer 15
-
HK$29,829 HKD
$3,802 USD
View
Retailer 16
-
HK$42,457 HKD
£4,261 GBP
View
Price last confirmed 25 days ago
Most Expensive
C
William & Sons Jewelers
cert_2567210753 · Nov 2
HK$71,561 HKD
$9,121 USD
View
Final sale: no returns
16 more retailers have this diamond
Prices start from HK$17,935 HKDSave up to HK$53,625 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$17,935 HKD