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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6542714039

Certificate GIA 6542714039

Diamond specifications and retailer prices

From HK$25,879 HKD
As of November 6, 2026
Save HK$31,682 HKD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$57,561 HKD at MOH London · As of November 2, 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 I 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 6542714039. Listed at 20 retailers as of November 2, 2026, with prices from HK$25,879 to HK$57,561, a HK$31,682 spread on the same certified stone. MOH London lists it at HK$57,561. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle30.8°
OriginNatural
Grading LabGIA
CertificateGIA 6542714039
Dimensions7.36 × 5.88 × 4.04 mm
L/W Ratio1.25
Top View
7.36 mm5.88 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542714039
Side View
Table 64.0%CrownGirdle: STK-THKPavilion 30.8°Culet: NoneDepth 68.8%

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 6
Current: HK$57,561 HKD|Low: HK$25,879 HKD|High: HK$59,094 HKD|Avg: HK$36,545 HKD|-2.6%
MOH London
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
Retailer 17
Retailer 18
Retailer 19
November 7, 2026
Retailer 17HK$25,879 HKD
Retailer 7HK$29,335 HKD
Retailer 16HK$29,774 HKD
Retailer 9HK$30,793 HKD
Retailer 3HK$31,506 HKD
Retailer 6HK$32,063 HKD
Retailer 19HK$32,196 HKD
Retailer 14HK$32,611 HKD
Retailer 12HK$32,917 HKD
Retailer 18HK$33,035 HKD
Retailer 2HK$33,042 HKD
Retailer 11HK$33,387 HKD
Retailer 5HK$34,179 HKD
Retailer 8HK$35,386 HKD
Retailer 10HK$35,778 HKD
Retailer 13HK$39,250 HKD
Retailer 15HK$42,557 HKD
Retailer 4HK$54,305 HKD
MOH LondonHK$57,561 HKD

20 data points across 19 retailers

20 retailersHK$25,879 HKD to HK$57,561 HKD

A
Cheapest Retailer
-
HK$25,879 HKD
A
Retailer 2
-
HK$29,335 HKD
View
A
Retailer 3
-
HK$29,774 HKD
View
Retailer 4
-
HK$30,793 HKD
View
Price last confirmed 10 days ago
A
Retailer 5
-
HK$31,506 HKD
View
A
Retailer 6
-
HK$32,063 HKD
View
A
Retailer 7
-
HK$32,196 HKD
View
Final sale: no returns
A
Retailer 8
-
HK$32,611 HKD
View
A
Retailer 9
-
HK$32,917 HKD
View
A
Retailer 10
-
HK$33,035 HKD
View
A
Retailer 11
-
HK$33,042 HKD
View
Retailer 12
-
HK$33,387 HKD
View
Price last confirmed 8 days ago
A
Retailer 13
-
HK$34,179 HKD
View
Retailer 14
-
HK$35,386 HKD
View
Price last confirmed 8 days ago
Retailer 15
-
HK$35,778 HKD
View
Price last confirmed 18 days ago
Retailer 16
-
HK$38,725 HKD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
HK$39,250 HKD
View
B+
Retailer 18
-
HK$42,557 HKD
View
B
Retailer 19
-
HK$54,305 HKD
View
Most Expensive
B
MOH London
87E195438 · Nov 2
HK$57,561 HKD
£5,783 GBP
View
19 more retailers have this diamond
Prices start from HK$25,879 HKDSave up to HK$31,682 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$25,879 HKD