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Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2567103225

Certificate GIA 2567103225

Diamond specifications and retailer prices

From HK$31,535 HKD
As of October 28, 2026
Save HK$37,928 HKD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$74,962 HKD at NZ Jewellers · As of October 14, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2567103225. Listed at 11 retailers as of October 28, 2026, with a 120% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2567103225
Dimensions7.24 × 7.30 × 4.56 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
7.24 mm7.30 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2567103225
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: Oct 28
Current: HK$74,962 HKD|Low: HK$31,535 HKD|High: HK$76,562 HKD|Avg: HK$47,748 HKD|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 5HK$31,535 HKD
Retailer 6HK$36,291 HKD
Retailer 10HK$38,022 HKD
Retailer 9HK$40,509 HKD
Retailer 3HK$44,817 HKD
Retailer 11HK$44,817 HKD
Retailer 2HK$44,877 HKD
Retailer 8HK$45,790 HKD
Retailer 7HK$48,689 HKD
Retailer 4HK$69,463 HKD
NZ JewellersHK$74,962 HKD

29 data points across 11 retailers

11 retailersHK$31,535 HKD to HK$69,463 HKD

A
Cheapest Retailer
-
HK$31,535 HKD
Retailer 2
-
HK$36,291 HKD
€4,405 EUR
View
Price last confirmed 6 days ago
A
Retailer 3
-
HK$38,022 HKD
$4,846 USD
View
A
Retailer 4
-
HK$40,509 HKD
SGD 6,977 SGD
View
Retailer 5
-
HK$44,817 HKD
$5,712 USD
View
Price last confirmed 19 days ago
Retailer 6
-
HK$44,817 HKD
$5,712 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
HK$44,877 HKD
£4,504 GBP
View
B+
Retailer 8
-
HK$45,790 HKD
$5,836 USD
View
B+
Retailer 9
-
HK$48,689 HKD
€5,910 EUR
View
B
Retailer 10
-
HK$69,463 HKD
£6,971 GBP
View
Most Expensive
NZ Jewellers
4999cb3f-c561-4b78-81e9-38bc7486ca1c · Oct 14
HK$74,962 HKD
$9,554 USD
View
Price last confirmed 19 days ago
10 more retailers have this diamond
Prices start from HK$31,535 HKDSave up to HK$37,928 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$31,535 HKD