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Radiant|Natural|GIA

1.51ct L SI2 Radiant Natural Diamond

EX • L/SI2 • GIA 6435273121

Certificate GIA 6435273121

Diamond specifications and retailer prices

From $3,505 SGD
As of November 7, 2026
Save $1,424 SGD (29%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,442 SGD at NZ Jewellers · As of October 18, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6435273121. Listed at 9 retailers as of November 4, 2026, with a 41% 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
L
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6435273121
Dimensions6.76 × 5.55 × 3.99 mm
L/W Ratio1.22
Top View
6.76 mm5.55 mm1.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435273121
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $7,442 SGD|Low: $3,363 SGD|High: $7,442 SGD|Avg: $4,560 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
November 4, 2026
Retailer 4$3,363 SGD
Retailer 12$3,505 SGD
Retailer 10$3,792 SGD
Retailer 7$4,272 SGD
Retailer 2$4,328 SGD
Retailer 6$4,420 SGD
Retailer 9$4,437 SGD
Retailer 11$4,456 SGD
Retailer 5$4,929 SGD
Retailer 8$4,964 SGD
Retailer 3$5,083 SGD
NZ Jewellers$7,442 SGD

28 data points across 12 retailers

9 retailers$3,505 SGD to $4,929 SGD

B+
Cheapest Retailer
-
$3,505 SGD
Retailer 2
-
$3,792 SGD
View
Price last confirmed 18 days ago
Retailer 3
-
$4,272 SGD
View
Price last confirmed 18 days ago
B
Retailer 4
-
$4,328 SGD
View
B
Retailer 5
-
$4,420 SGD
View
Retailer 6
-
$4,437 SGD
View
Price last confirmed 22 days ago
B
Retailer 7
-
$4,456 SGD
View
B
Retailer 8
-
$4,929 SGD
View
Most Expensive
NZ Jewellers
759621d4-8cbd-412f-946b-2d0f3f45db12 · Oct 18
$7,442 SGD
$5,807 USD
View
Price last confirmed 20 days ago
8 more retailers have this diamond
Prices start from $3,505 SGDSave up to $1,424 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.

B+
1.51ct Radiant
$3,505 SGD