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Radiant|Natural|GIA

1.51ct D SI2 Radiant Natural Diamond

ID • D/SI2 • GIA 1538968465

Certificate GIA 1538968465

Diamond specifications and retailer prices

From $5,449 SGD
HK$33,300 HKD
As of November 1, 2026
Save $5,658 SGD (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,436 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1538968465. Listed at 15 retailers as of November 1, 2026, with a 104% 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
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.3°
OriginNatural
Grading LabGIA
CertificateGIA 1538968465
Dimensions7.43 × 5.71 × 3.98 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
7.43 mm5.71 mm1.51 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538968465
Side View
Table 69.0%CrownGirdle: STK-THKPavilion 35.3°Culet: NoneDepth 69.7%

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: Nov 1
Current: $5,449 SGD|Low: $5,449 SGD|High: $11,962 SGD|Avg: $7,345 SGD|-3.2%
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 1$5,449 SGD
Retailer 4$5,619 SGD
Retailer 5$5,759 SGD
Retailer 11$5,869 SGD
Retailer 12$6,168 SGD
Retailer 9$6,304 SGD
Retailer 6$6,485 SGD
Retailer 2$6,520 SGD
Retailer 8$6,848 SGD
Retailer 3$8,067 SGD
Retailer 10$8,128 SGD
Retailer 7$11,107 SGD
Retailer 13$11,453 SGD

36 data points across 13 retailers

15 retailers$5,449 SGD to $11,107 SGD

A
Cheapest Retailer
-
$5,449 SGD
HK$33,300 HKD
A
Retailer 2
-
$5,619 SGD
$4,395 USD
View
Retailer 3
-
$5,759 SGD
$4,505 USD
View
Price last confirmed 24 days ago
A
Retailer 4
-
$5,869 SGD
$4,591 USD
View
A
Retailer 5
-
$6,168 SGD
$4,825 USD
View
A
Retailer 6
-
$6,304 SGD
$4,931 USD
View
Final sale: no returns
A
Retailer 7
-
$6,485 SGD
$5,073 USD
View
A
Retailer 8
-
$6,520 SGD
$5,100 USD
View
A
Retailer 9
-
$6,848 SGD
£4,218 GBP
View
A
Retailer 10
-
$7,369 SGD
A$8,868 AUD
View
A
Retailer 11
-
$8,067 SGD
View
A
Retailer 12
-
$8,128 SGD
€6,055 EUR
View
B+
Retailer 13
-
$11,107 SGD
£6,841 GBP
View
Retailer 14
-
$11,453 SGD
$8,959 USD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
3878d734-e09f-4865-ac8f-21f2881f453b · Sep 25
$13,436 SGD
$10,510 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from $5,449 SGDSave up to $5,658 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 Radiant
$5,449 SGD