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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6545925688

Certificate GIA 6545925688

Diamond specifications and retailer prices

From HK$28,285 HKD
As of November 6, 2026
Save HK$31,129 HKD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$59,414 HKD at Wholesale Diamonds Direct · As of November 6, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6545925688. Listed at 21 retailers as of November 6, 2026, with prices from HK$28,285 to HK$59,414, a HK$31,129 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$59,414. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545925688
Dimensions7.45 × 5.71 × 4.15 mm
L/W Ratio1.30
Top View
7.45 mm5.71 mm1.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545925688
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 72.6%

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 6
Current: HK$36,922 HKD|Low: HK$28,285 HKD|High: HK$62,323 HKD|Avg: HK$38,777 HKD|-4.8%
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
Retailer 17
Retailer 18
Wholesale Diamonds Direct
November 7, 2026
Retailer 18HK$28,285 HKD
Retailer 6HK$32,455 HKD
Retailer 17HK$32,470 HKD
Retailer 9HK$33,003 HKD
Retailer 7HK$33,215 HKD
Retailer 2HK$33,881 HKD
Retailer 4HK$34,359 HKD
Retailer 3HK$34,524 HKD
Retailer 11HK$35,268 HKD
Retailer 12HK$35,300 HKD
Retailer 10HK$35,739 HKD
Retailer 14HK$35,950 HKD
Retailer 1HK$36,922 HKD
Retailer 5HK$37,431 HKD
Retailer 8HK$38,576 HKD
Retailer 13HK$42,095 HKD
Retailer 15HK$45,637 HKD
Retailer 16HK$59,407 HKD
Wholesale Diamonds DirectHK$59,414 HKD

20 data points across 19 retailers

21 retailersHK$28,285 HKD to HK$59,414 HKD

A
Cheapest Retailer
-
HK$28,285 HKD
B+
Retailer 2
-
HK$32,455 HKD
View
B+
Retailer 3
-
HK$32,470 HKD
View
Retailer 4
-
HK$33,003 HKD
View
Price last confirmed 9 days ago
Retailer 5
-
HK$33,215 HKD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
HK$33,881 HKD
View
B+
Retailer 7
-
HK$34,359 HKD
View
B+
Retailer 8
-
HK$34,524 HKD
View
Final sale: no returns
B+
Retailer 9
-
HK$35,268 HKD
View
B+
Retailer 10
-
HK$35,300 HKD
View
Retailer 11
-
HK$35,739 HKD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
HK$35,950 HKD
View
B+
Retailer 13
-
HK$36,922 HKD
View
B+
Retailer 14
-
HK$37,431 HKD
View
Retailer 15
-
HK$38,576 HKD
View
Price last confirmed 18 days ago
Retailer 16
-
HK$39,493 HKD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
HK$39,618 HKD
View
B+
Retailer 18
-
HK$42,095 HKD
View
B
Retailer 19
-
HK$45,637 HKD
View
B
Retailer 20
-
HK$59,407 HKD
View
Most Expensive
B
Wholesale Diamonds Direct
625981062 · Nov 6
HK$59,414 HKD
$7,581 USD
View
20 more retailers have this diamond
Prices start from HK$28,285 HKDSave up to HK$31,129 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$28,285 HKD