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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1543770021

Certificate GIA 1543770021

Diamond specifications and retailer prices

From HK$40,700 HKD
As of November 6, 2026
Save HK$39,098 HKD (49%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$79,797 HKD at MOH London · As of November 4, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1543770021. Listed at 21 retailers as of November 4, 2026, with prices from HK$40,700 to HK$79,797, a HK$39,098 spread on the same certified stone. MOH London lists it at HK$79,797. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543770021
Dimensions7.59 × 6.22 × 4.30 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizeNone
Top View
7.59 mm6.22 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543770021
Side View
Table 69.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.1%

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 6
Current: HK$79,797 HKD|Low: HK$40,700 HKD|High: HK$80,982 HKD|Avg: HK$53,856 HKD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9HK$40,700 HKD
Retailer 8HK$42,910 HKD
Retailer 5HK$43,309 HKD
Retailer 10HK$48,474 HKD
Retailer 7HK$49,203 HKD
Retailer 2HK$51,703 HKD
Retailer 6HK$53,255 HKD
Retailer 3HK$58,443 HKD
Retailer 4HK$66,265 HKD
MOH LondonHK$79,797 HKD

46 data points across 10 retailers

21 retailersHK$40,700 HKD to HK$79,797 HKD

B+
Cheapest Retailer
-
HK$40,700 HKD
B+
Retailer 2
-
HK$42,424 HKD
View
B+
Retailer 3
-
HK$42,910 HKD
View
B+
Retailer 4
-
HK$43,309 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$43,474 HKD
View
Retailer 6
-
HK$44,485 HKD
View
Price last confirmed 23 days ago
B+
Retailer 7
-
HK$44,595 HKD
View
B
Retailer 8
-
HK$48,474 HKD
View
Retailer 9
-
HK$49,203 HKD
View
Price last confirmed 9 days ago
B
Retailer 10
-
HK$49,564 HKD
View
B
Retailer 11
-
HK$50,112 HKD
View
B
Retailer 12
-
HK$50,300 HKD
View
B+
Retailer 13
-
HK$51,703 HKD
View
Retailer 14
-
HK$53,255 HKD
View
Price last confirmed 34 days ago
B
Retailer 15
-
HK$53,765 HKD
View
B
Retailer 16
-
HK$53,765 HKD
View
B
Retailer 17
-
HK$55,567 HKD
View
B
Retailer 18
-
HK$58,443 HKD
View
Retailer 19
-
HK$59,870 HKD
View
Price last confirmed 15 days ago
B
Retailer 20
-
HK$66,265 HKD
View
Most Expensive
B
MOH London
36872112B · Nov 4
HK$79,797 HKD
£8,017 GBP
View
20 more retailers have this diamond
Prices start from HK$40,700 HKDSave up to HK$39,098 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$40,700 HKD