Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2225656240

Certificate GIA 2225656240

Diamond specifications and retailer prices

From HK$55,095 HKD
$7,022 USD
As of November 2, 2026
Save HK$48,446 HKD (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$103,542 HKD at MOH London · As of November 1, 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 H 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 2225656240. Listed at 24 retailers as of November 1, 2026, with prices from HK$55,095 to HK$103,542, a HK$48,446 spread on the same certified stone. MOH London lists it at HK$103,542. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.57°
Pavilion angle40.44°
OriginNatural
Grading LabGIA
CertificateGIA 2225656240
Dimensions6.79 × 6.63 × 4.44 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.79 mm6.63 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2225656240
Side View
Table 68.0%Crown 35.57°Girdle: THK-VTKPavilion 40.44°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$103,542 HKD|Low: HK$54,146 HKD|High: HK$104,787 HKD|Avg: HK$71,042 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3HK$55,095 HKD
Retailer 7HK$55,433 HKD
Retailer 9HK$58,171 HKD
Retailer 10HK$62,125 HKD
Retailer 11HK$62,133 HKD
Retailer 8HK$62,643 HKD
Retailer 4HK$69,347 HKD
Retailer 6HK$70,051 HKD
Retailer 2HK$81,157 HKD
Retailer 5HK$91,273 HKD
MOH LondonHK$103,542 HKD

44 data points across 11 retailers

24 retailersHK$55,095 HKD to HK$103,542 HKD

B+
Cheapest Retailer
-
HK$55,095 HKD
$7,022 USD
B+
Retailer 2
-
HK$55,433 HKD
$7,065 USD
View
B
Retailer 3
-
HK$57,779 HKD
$7,364 USD
View
B
Retailer 4
-
HK$57,996 HKD
A$11,372 AUD
View
B
Retailer 5
-
HK$58,171 HKD
$7,414 USD
View
B
Retailer 6
-
HK$59,796 HKD
$7,621 USD
View
B
Retailer 7
-
HK$61,866 HKD
$7,885 USD
View
B
Retailer 8
-
HK$62,125 HKD
$7,918 USD
View
Final sale: no returns
B
Retailer 9
-
HK$62,133 HKD
$7,919 USD
View
B
Retailer 10
-
HK$62,643 HKD
$7,984 USD
View
B
Retailer 11
-
HK$66,207 HKD
$8,438 USD
View
B
Retailer 12
-
HK$66,775 HKD
CA$11,820 CAD
View
B
Retailer 13
-
HK$68,227 HKD
A$13,378 AUD
View
B
Retailer 14
-
HK$68,387 HKD
$8,716 USD
View
B
Retailer 15
-
HK$69,347 HKD
£6,959 GBP
View
Retailer 16
-
HK$70,051 HKD
A$13,736 AUD
View
Price last confirmed 9 days ago
B
Retailer 17
-
HK$72,733 HKD
$9,270 USD
View
B
Retailer 18
-
HK$72,733 HKD
$9,270 USD
View
B
Retailer 19
-
HK$74,312 HKD
$9,471 USD
View
B
Retailer 20
-
HK$75,166 HKD
$9,580 USD
View
B
Retailer 21
-
HK$81,157 HKD
€9,851 EUR
View
Retailer 22
-
HK$81,796 HKD
$10,425 USD
View
Price last confirmed 10 days ago
B
Retailer 23
-
HK$91,273 HKD
ZAR 187,930 ZAR
View
Most Expensive
B
MOH London
2FED25E2D · Nov 1
HK$103,542 HKD
£10,391 GBP
View
23 more retailers have this diamond
Prices start from HK$55,095 HKDSave up to HK$48,446 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.

B+
1.51ct Cushion
HK$55,095 HKD