Round|Natural|GIA

1.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2536020942

Certificate GIA 2536020942

Diamond specifications and retailer prices

From HK$54,125 HKD
As of November 4, 2026
Save HK$21,467 HKD (28%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$97,936 HKD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 2536020942. Listed at 19 retailers as of November 4, 2026, with a 40% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2536020942
Dimensions7.29 × 7.25 × 4.60 mm
L/W Ratio1.01
Top View
7.29 mm7.25 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536020942
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.3%

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 4
Current: HK$75,592 HKD|Low: HK$43,968 HKD|High: HK$83,758 HKD|Avg: HK$58,931 HKD|+21.6%
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
November 5, 2026
Retailer 12HK$43,968 HKD
Retailer 11HK$48,960 HKD
Retailer 5HK$48,968 HKD
Retailer 8HK$50,199 HKD
Retailer 4HK$52,511 HKD
Retailer 2HK$54,125 HKD
Retailer 3HK$56,633 HKD
Retailer 13HK$57,041 HKD
Retailer 9HK$71,109 HKD
Retailer 6HK$71,344 HKD
Retailer 1HK$75,592 HKD
Retailer 10HK$82,591 HKD
Retailer 7HK$83,359 HKD

26 data points across 13 retailers

19 retailersHK$54,125 HKD to HK$75,592 HKD

Retailer 1
-
HK$43,968 HKD
Price last confirmed 30 days ago
Retailer 2
-
HK$48,968 HKD
View
Price last confirmed 25 days ago
Retailer 3
-
HK$52,189 HKD
View
Price last confirmed 23 days ago
Retailer 4
-
HK$52,511 HKD
View
Price last confirmed 23 days ago
Retailer 5
-
HK$53,051 HKD
View
Price last confirmed 29 days ago
Retailer 6
-
HK$53,051 HKD
View
Price last confirmed 39 days ago
Retailer 7
-
HK$53,866 HKD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
HK$54,125 HKD
View
B+
Retailer 9
-
HK$56,633 HKD
View
Retailer 10
-
HK$57,041 HKD
View
Price last confirmed 33 days ago
B
Retailer 11
-
HK$57,103 HKD
View
Retailer 12
-
HK$61,210 HKD
View
Price last confirmed 38 days ago
Retailer 13
-
HK$64,525 HKD
View
Price last confirmed 24 days ago
Retailer 14
-
HK$71,109 HKD
View
Price last confirmed 25 days ago
B
Retailer 15
-
HK$71,344 HKD
View
B
Retailer 16
-
HK$75,592 HKD
View
Retailer 17
-
HK$82,591 HKD
View
Price last confirmed 26 days ago
Retailer 18
-
HK$83,359 HKD
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
1c847ad7-4fd8-4091-97c1-cfb16bbe43e1 · Sep 28
HK$97,936 HKD
$12,496 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from HK$54,125 HKDSave up to HK$21,467 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 Round
HK$54,125 HKD