CaratHunter
Plans
Cushion|Natural|GIA

1.51ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2528970528

Certificate GIA 2528970528

Diamond specifications and retailer prices

From HK$17,830 HKD
As of November 5, 2026
Save HK$20,720 HKD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$38,550 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2528970528. Listed at 12 retailers as of November 4, 2026, with prices from HK$17,830 to HK$38,550, a HK$20,720 spread on the same certified stone. MOH London lists it at HK$38,550. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37°
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 2528970528
Dimensions6.59 × 6.55 × 4.45 mm
L/W Ratio1.01
Top View
6.59 mm6.55 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2528970528
Side View
Table 61.0%Crown 37°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 67.9%

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 5
Current: HK$38,550 HKD|Low: HK$17,830 HKD|High: HK$39,067 HKD|Avg: HK$24,211 HKD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 4HK$17,830 HKD
Retailer 7HK$18,473 HKD
Retailer 12HK$19,758 HKD
Retailer 5HK$21,396 HKD
Retailer 9HK$21,631 HKD
Retailer 8HK$22,062 HKD
Retailer 3HK$23,167 HKD
Retailer 2HK$23,348 HKD
Retailer 10HK$23,928 HKD
Retailer 11HK$24,139 HKD
Retailer 6HK$26,921 HKD
MOH LondonHK$38,550 HKD

43 data points across 12 retailers

12 retailersHK$17,830 HKD to HK$38,550 HKD

A
Cheapest Retailer
-
HK$17,830 HKD
A
Retailer 2
-
HK$18,473 HKD
View
A
Retailer 3
-
HK$19,758 HKD
View
A
Retailer 4
-
HK$21,396 HKD
View
B+
Retailer 5
-
HK$21,631 HKD
View
Retailer 6
-
HK$22,062 HKD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
HK$23,167 HKD
View
A
Retailer 8
-
HK$23,348 HKD
View
B+
Retailer 9
-
HK$23,928 HKD
View
B+
Retailer 10
-
HK$24,139 HKD
View
B+
Retailer 11
-
HK$26,921 HKD
View
Most Expensive
B
MOH London
34FD10842 · Nov 4
HK$38,550 HKD
£3,873 GBP
View
11 more retailers have this diamond
Prices start from HK$17,830 HKDSave up to HK$20,720 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$17,830 HKD