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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6551533295

Certificate GIA 6551533295

Diamond specifications and retailer prices

From HK$27,719 HKD
As of November 1, 2026
Save HK$39,741 HKD (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$67,460 HKD at Queensmith · As of October 28, 2026
View at Queensmith

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 6551533295. Listed at 15 retailers as of October 28, 2026, with prices from HK$27,719 to HK$67,460, a HK$39,741 spread on the same certified stone. Queensmith lists it at HK$67,460. 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 6551533295
Dimensions7.61 × 5.86 × 4.02 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.61 mm5.86 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551533295
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: 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 1
Current: HK$67,460 HKD|Low: HK$27,518 HKD|High: HK$67,859 HKD|Avg: HK$40,050 HKD|+2.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10HK$27,719 HKD
Retailer 2HK$29,649 HKD
Retailer 5HK$32,654 HKD
Retailer 3HK$34,178 HKD
Retailer 12HK$35,272 HKD
Retailer 6HK$35,875 HKD
Retailer 8HK$36,824 HKD
Retailer 11HK$37,034 HKD
Retailer 4HK$38,211 HKD
Retailer 13HK$39,191 HKD
Retailer 7HK$41,901 HKD
Retailer 9HK$58,980 HKD
QueensmithHK$67,460 HKD

24 data points across 13 retailers

15 retailersHK$27,719 HKD to HK$67,460 HKD

A
Cheapest Retailer
-
HK$27,719 HKD
A
Retailer 2
-
HK$29,649 HKD
₹359,882 INR
View
A
Retailer 3
-
HK$32,654 HKD
SGD 5,624 SGD
View
B+
Retailer 4
-
HK$33,950 HKD
$4,327 USD
View
A
Retailer 5
-
HK$34,178 HKD
$4,356 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$35,272 HKD
SGD 6,075 SGD
View
A
Retailer 7
-
HK$35,875 HKD
£3,600 GBP
View
B+
Retailer 8
-
HK$36,824 HKD
£3,695 GBP
View
B+
Retailer 9
-
HK$37,034 HKD
$4,720 USD
View
B+
Retailer 10
-
HK$38,036 HKD
A$7,458 AUD
View
B+
Retailer 11
-
HK$38,211 HKD
$4,870 USD
View
B+
Retailer 12
-
HK$39,191 HKD
$4,995 USD
View
B+
Retailer 13
-
HK$41,901 HKD
€5,086 EUR
View
B
Retailer 14
-
HK$58,980 HKD
£5,919 GBP
View
Most Expensive
B
Queensmith
6551533295 · Oct 28
HK$67,460 HKD
£6,770 GBP
View
14 more retailers have this diamond
Prices start from HK$27,719 HKDSave up to HK$39,741 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$27,719 HKD