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Radiant|Natural|GIA

1.51ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 6545823175

Certificate GIA 6545823175

Diamond specifications and retailer prices

From $9,637 SGD
$7,538 USD
As of November 1, 2026
Save $10,947 SGD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $20,584 SGD at NZ Jewellers · As of October 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 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 6545823175. Listed at 14 retailers as of October 30, 2026, with prices from $9,637 to $20,584, a $10,947 spread on the same certified stone. NZ Jewellers lists it at $20,584. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545823175
Dimensions7.89 × 5.72 × 3.88 mm
L/W Ratio1.38
Top View
7.89 mm5.72 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545823175
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $20,584 SGD|Low: $9,637 SGD|High: $20,584 SGD|Avg: $12,700 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 6$9,637 SGD
Retailer 4$10,112 SGD
Retailer 12$10,292 SGD
Retailer 14$10,378 SGD
Retailer 11$11,150 SGD
Retailer 10$11,322 SGD
Retailer 2$11,491 SGD
Retailer 7$11,826 SGD
Retailer 9$12,477 SGD
Retailer 13$12,865 SGD
Retailer 5$12,868 SGD
Retailer 15$13,548 SGD
Retailer 3$14,671 SGD
Retailer 8$17,151 SGD
NZ Jewellers$20,584 SGD

42 data points across 15 retailers

14 retailers$9,637 SGD to $20,584 SGD

A
Cheapest Retailer
-
$9,637 SGD
$7,538 USD
B+
Retailer 2
-
$10,112 SGD
CA$10,986 CAD
View
B+
Retailer 3
-
$10,292 SGD
$8,051 USD
View
B+
Retailer 4
-
$10,378 SGD
$8,118 USD
View
B+
Retailer 5
-
$11,150 SGD
$8,722 USD
View
B+
Retailer 6
-
$11,322 SGD
$8,856 USD
View
B+
Retailer 7
-
$11,491 SGD
£7,078 GBP
View
B+
Retailer 8
-
$11,826 SGD
$9,251 USD
View
B
Retailer 9
-
$12,193 SGD
$9,538 USD
View
B+
Retailer 10
-
$12,477 SGD
€9,295 EUR
View
B+
Retailer 11
-
$12,865 SGD
$10,063 USD
View
B+
Retailer 12
-
$12,868 SGD
$10,066 USD
View
B
Retailer 13
-
$17,151 SGD
£10,564 GBP
View
Most Expensive
B
NZ Jewellers
ad15a242-6351-421f-8ec9-3852edf42832 · Oct 30
$20,584 SGD
$16,101 USD
View
13 more retailers have this diamond
Prices start from $9,637 SGDSave up to $10,947 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
$9,637 SGD