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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2235873913

Certificate GIA 2235873913

Diamond specifications and retailer prices

From HK$34,597 HKD
As of November 1, 2026
Save HK$36,606 HKD (51%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$74,969 HKD at NZ Jewellers · As of September 26, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235873913. Listed at 24 retailers as of November 1, 2026, with a 106% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2235873913
Dimensions7.25 × 7.30 × 4.57 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Cloud, Needle
Top View
7.25 mm7.30 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235873913
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.8%

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 1
Current: HK$48,217 HKD|Low: HK$34,362 HKD|High: HK$72,254 HKD|Avg: HK$46,433 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9HK$34,597 HKD
Retailer 4HK$35,421 HKD
Retailer 3HK$37,477 HKD
Retailer 10HK$40,607 HKD
Retailer 5HK$43,015 HKD
Retailer 2HK$43,698 HKD
Retailer 11HK$43,698 HKD
Retailer 12HK$45,110 HKD
Retailer 1HK$48,217 HKD
Retailer 6HK$48,970 HKD
Retailer 8HK$50,554 HKD
Retailer 7HK$71,203 HKD

37 data points across 12 retailers

24 retailersHK$34,597 HKD to HK$71,203 HKD

A
Cheapest Retailer
-
HK$34,597 HKD
A
Retailer 2
-
HK$35,421 HKD
View
A
Retailer 3
-
HK$37,477 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$40,191 HKD
View
Retailer 5
-
HK$40,607 HKD
View
Price last confirmed 8 days ago
Retailer 6
-
HK$40,607 HKD
View
Price last confirmed 29 days ago
Retailer 7
-
HK$40,607 HKD
View
Price last confirmed 50 days ago
Retailer 8
-
HK$40,607 HKD
View
Price last confirmed 15 days ago
Retailer 9
-
HK$40,607 HKD
View
Price last confirmed 29 days ago
Retailer 10
-
HK$40,607 HKD
View
Price last confirmed 38 days ago
A
Retailer 11
-
HK$43,015 HKD
View
B+
Retailer 12
-
HK$43,698 HKD
View
B+
Retailer 13
-
HK$43,698 HKD
View
B+
Retailer 14
-
HK$45,110 HKD
View
Retailer 15
-
HK$46,859 HKD
View
Price last confirmed 45 days ago
Retailer 16
-
HK$46,859 HKD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
HK$46,859 HKD
View
B+
Retailer 18
-
HK$48,217 HKD
View
B+
Retailer 19
-
HK$48,970 HKD
View
Retailer 20
-
HK$49,456 HKD
View
Price last confirmed 24 days ago
B+
Retailer 21
-
HK$50,554 HKD
View
B
Retailer 22
-
HK$71,203 HKD
View
Retailer 23
-
HK$74,969 HKD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
0297ace1-4c25-4e24-8a38-83a7ff6b9e58 · Sep 26
HK$74,969 HKD
$9,556 USD
View
Price last confirmed 40 days ago
23 more retailers have this diamond
Prices start from HK$34,597 HKDSave up to HK$36,606 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 Round
HK$34,597 HKD