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Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 6551369573

Certificate GIA 6551369573

Diamond specifications and retailer prices

From $3,073 SGD
As of November 6, 2026
Save $3,462 SGD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,535 SGD at NZ Jewellers · As of November 5, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551369573. Listed at 10 retailers as of November 5, 2026, with prices from $3,073 to $6,535, a $3,462 spread on the same certified stone. NZ Jewellers lists it at $6,535. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551369573
Dimensions7.50 × 5.56 × 3.93 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Pinpoint
Top View
7.50 mm5.56 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551369573
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.5%

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 6
Current: $6,535 SGD|Low: $3,071 SGD|High: $6,535 SGD|Avg: $3,679 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$3,073 SGD
Retailer 10$3,108 SGD
Retailer 6$3,126 SGD
Retailer 8$3,126 SGD
Retailer 9$3,269 SGD
Retailer 2$3,307 SGD
Retailer 7$3,606 SGD
Retailer 5$3,814 SGD
Retailer 4$3,879 SGD
NZ Jewellers$6,535 SGD

37 data points across 10 retailers

10 retailers$3,073 SGD to $6,535 SGD

A
Cheapest Retailer
-
$3,073 SGD
B+
Retailer 2
-
$3,108 SGD
View
B+
Retailer 3
-
$3,126 SGD
View
Retailer 4
-
$3,126 SGD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
$3,269 SGD
View
B+
Retailer 6
-
$3,307 SGD
View
B+
Retailer 7
-
$3,606 SGD
View
B
Retailer 8
-
$3,814 SGD
View
B
Retailer 9
-
$3,879 SGD
View
Most Expensive
C
NZ Jewellers
c177503c-87dd-41ac-a55e-122f567601ac · Nov 5
$6,535 SGD
$5,099 USD
View
9 more retailers have this diamond
Prices start from $3,073 SGDSave up to $3,462 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
$3,073 SGD