Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 1428687763

Certificate GIA 1428687763

Diamond specifications and retailer prices

From HK$38,195 HKD
$4,868 USD
As of November 2, 2026
Save HK$44,112 HKD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$82,307 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1428687763. Listed at 19 retailers as of November 1, 2026, with prices from HK$38,195 to HK$82,307, a HK$44,112 spread on the same certified stone. MOH London lists it at HK$82,307. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1428687763
Dimensions6.69 × 5.94 × 4.13 mm
L/W Ratio1.13
Culet sizeNone
Top View
6.69 mm5.94 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1428687763
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

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$82,307 HKD|Low: HK$41,161 HKD|High: HK$83,304 HKD|Avg: HK$57,756 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3HK$42,115 HKD
Retailer 6HK$46,253 HKD
Retailer 7HK$49,391 HKD
Retailer 8HK$49,391 HKD
Retailer 5HK$57,324 HKD
Retailer 2HK$64,515 HKD
Retailer 4HK$72,565 HKD
MOH LondonHK$82,307 HKD

43 data points across 8 retailers

19 retailersHK$38,195 HKD to HK$82,307 HKD

B+
Cheapest Retailer
-
HK$38,195 HKD
$4,868 USD
B+
Retailer 2
-
HK$42,115 HKD
£4,227 GBP
View
B+
Retailer 3
-
HK$42,471 HKD
$5,413 USD
View
B+
Retailer 4
-
HK$45,272 HKD
$5,770 USD
View
B+
Retailer 5
-
HK$45,272 HKD
$5,770 USD
View
B+
Retailer 6
-
HK$46,253 HKD
$5,895 USD
View
B
Retailer 7
-
HK$46,661 HKD
$5,947 USD
View
B
Retailer 8
-
HK$46,763 HKD
$5,960 USD
View
B
Retailer 9
-
HK$49,391 HKD
$6,295 USD
View
Final sale: no returns
B
Retailer 10
-
HK$49,391 HKD
$6,295 USD
View
B
Retailer 11
-
HK$49,587 HKD
$6,320 USD
View
B+
Retailer 12
-
HK$50,254 HKD
$6,405 USD
View
B
Retailer 13
-
HK$52,632 HKD
$6,708 USD
View
B
Retailer 14
-
HK$56,633 HKD
$7,218 USD
View
Retailer 15
-
HK$57,324 HKD
A$11,240 AUD
View
Price last confirmed 12 days ago
B
Retailer 16
-
HK$64,515 HKD
€7,831 EUR
View
Retailer 17
-
HK$65,076 HKD
$8,294 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
HK$72,565 HKD
ZAR 149,411 ZAR
View
Most Expensive
B
MOH London
86C3866EA · Nov 1
HK$82,307 HKD
£8,260 GBP
View
18 more retailers have this diamond
Prices start from HK$38,195 HKDSave up to HK$44,112 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$38,195 HKD