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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 $5,138 SGD
HK$31,400 HKD
As of October 28, 2026
Save $6,180 SGD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $12,214 SGD 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: $12,214 SGD|Low: $5,138 SGD|High: $12,475 SGD|Avg: $7,780 SGD|-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 5$5,138 SGD
Retailer 6$5,913 SGD
Retailer 10$6,195 SGD
Retailer 9$6,600 SGD
Retailer 3$7,302 SGD
Retailer 11$7,302 SGD
Retailer 2$7,312 SGD
Retailer 8$7,461 SGD
Retailer 7$7,933 SGD
Retailer 4$11,318 SGD
NZ Jewellers$12,214 SGD

29 data points across 11 retailers

11 retailers$5,138 SGD to $11,318 SGD

A
Cheapest Retailer
-
$5,138 SGD
HK$31,400 HKD
Retailer 2
-
$5,913 SGD
€4,405 EUR
View
Price last confirmed 5 days ago
A
Retailer 3
-
$6,195 SGD
$4,846 USD
View
A
Retailer 4
-
$6,600 SGD
View
Retailer 5
-
$7,302 SGD
$5,712 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$7,302 SGD
$5,712 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$7,312 SGD
£4,504 GBP
View
B+
Retailer 8
-
$7,461 SGD
$5,836 USD
View
B+
Retailer 9
-
$7,933 SGD
€5,910 EUR
View
B
Retailer 10
-
$11,318 SGD
£6,971 GBP
View
Most Expensive
NZ Jewellers
4999cb3f-c561-4b78-81e9-38bc7486ca1c · Oct 14
$12,214 SGD
$9,554 USD
View
Price last confirmed 19 days ago
10 more retailers have this diamond
Prices start from $5,138 SGDSave up to $6,180 SGD

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
$5,138 SGD