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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2245026927

Certificate GIA 2245026927

Diamond specifications and retailer prices

From $4,107 SGD
HK$25,100 HKD
As of October 31, 2026
Save $5,046 SGD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,062 SGD at NZ Jewellers · As of September 25, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245026927. Listed at 16 retailers as of October 31, 2026, with a 123% 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2245026927
Dimensions7.27 × 7.31 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.27 mm7.31 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2245026927
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: Oct 31
Current: $6,967 SGD|Low: $3,960 SGD|High: $9,310 SGD|Avg: $5,724 SGD|-2.2%
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 1, 2026
Retailer 10$4,107 SGD
Retailer 12$4,166 SGD
Retailer 2$4,327 SGD
Retailer 13$4,352 SGD
Retailer 9$4,577 SGD
Retailer 6$4,824 SGD
Retailer 4$5,033 SGD
Retailer 8$5,075 SGD
Retailer 5$5,625 SGD
Retailer 11$6,187 SGD
Retailer 1$6,967 SGD
Retailer 3$8,358 SGD
Retailer 7$9,154 SGD

36 data points across 13 retailers

16 retailers$4,107 SGD to $9,154 SGD

A
Cheapest Retailer
-
$4,107 SGD
HK$25,100 HKD
A
Retailer 2
-
$4,166 SGD
$3,259 USD
View
A
Retailer 3
-
$4,327 SGD
$3,385 USD
View
A
Retailer 4
-
$4,352 SGD
$3,404 USD
View
B+
Retailer 5
-
$4,577 SGD
$3,580 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,788 SGD
A$5,763 AUD
View
A
Retailer 7
-
$4,824 SGD
$3,773 USD
View
Retailer 8
-
$5,033 SGD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$5,075 SGD
£3,126 GBP
View
B+
Retailer 10
-
$5,449 SGD
A$6,558 AUD
View
Retailer 11
-
$5,625 SGD
$4,400 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$6,187 SGD
€4,609 EUR
View
B
Retailer 13
-
$6,967 SGD
$5,450 USD
View
B
Retailer 14
-
$8,358 SGD
$6,538 USD
View
B
Retailer 15
-
$9,154 SGD
£5,638 GBP
View
Most Expensive
NZ Jewellers
2655f6ef-5654-4938-861c-cb17c05216c5 · Sep 25
$10,062 SGD
$7,871 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from $4,107 SGDSave up to $5,046 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
$4,107 SGD