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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From $8,352 SGD
$6,516 USD
As of October 25, 2026
Save $8,353 SGD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,861 SGD at NZ Jewellers · As of September 30, 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 E 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. Listed at 19 retailers as of October 24, 2026, with a 100% 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions7.67 × 5.68 × 3.79 mm
L/W Ratio1.35
Top View
7.67 mm5.68 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 66.7%

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 25
Current: $16,704 SGD|Low: $8,352 SGD|High: $16,861 SGD|Avg: $10,057 SGD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 3$8,352 SGD
Retailer 10$8,601 SGD
Retailer 7$8,874 SGD
Retailer 5$9,048 SGD
Retailer 4$9,187 SGD
Retailer 8$9,364 SGD
Retailer 2$9,439 SGD
Retailer 9$9,897 SGD
Retailer 6$10,439 SGD
NZ Jewellers$16,704 SGD

40 data points across 10 retailers

19 retailers$8,352 SGD to $16,704 SGD

A
Cheapest Retailer
-
$8,352 SGD
$6,516 USD
A
Retailer 2
-
$8,352 SGD
$6,516 USD
View
Retailer 3
-
$8,430 SGD
$6,577 USD
View
Price last confirmed 22 days ago
A
Retailer 4
-
$8,601 SGD
CA$9,320 CAD
View
A
Retailer 5
-
$8,874 SGD
$6,924 USD
View
A
Retailer 6
-
$9,048 SGD
$7,059 USD
View
B+
Retailer 7
-
$9,048 SGD
$7,059 USD
View
Retailer 8
-
$9,132 SGD
$7,125 USD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$9,187 SGD
$7,168 USD
View
B+
Retailer 10
-
$9,187 SGD
$7,168 USD
View
Retailer 11
-
$9,273 SGD
$7,235 USD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$9,364 SGD
$7,306 USD
View
B+
Retailer 13
-
$9,439 SGD
£5,799 GBP
View
B+
Retailer 14
-
$9,897 SGD
$7,722 USD
View
Retailer 15
-
$10,439 SGD
$8,145 USD
View
Price last confirmed 7 days ago
Retailer 16
-
$10,538 SGD
$8,222 USD
View
Price last confirmed 53 days ago
Retailer 17
-
$10,538 SGD
$8,222 USD
View
Price last confirmed 31 days ago
B
Retailer 18
-
$16,704 SGD
$13,033 USD
View
Most Expensive
NZ Jewellers
ff8c50ad-30fc-4b3c-9998-5b3eced69d03 · Sep 30
$16,861 SGD
$13,155 USD
View
Price last confirmed 29 days ago
18 more retailers have this diamond
Prices start from $8,352 SGDSave up to $8,353 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
$8,352 SGD