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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 2556028833

Certificate GIA 2556028833

Diamond specifications and retailer prices

From $7,639 SGD
$5,973 USD
As of November 2, 2026
Save $6,849 SGD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $14,487 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556028833. Listed at 9 retailers as of October 30, 2026, with prices from $7,639 to $14,487, a $6,849 spread on the same certified stone. NZ Jewellers lists it at $14,487. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.89°
Pavilion angle34.11°
OriginNatural
Grading LabGIA
CertificateGIA 2556028833
Dimensions7.58 × 5.77 × 3.90 mm
L/W Ratio1.31
Top View
7.58 mm5.77 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556028833
Side View
Table 70.0%Crown 44.89°Girdle: Slightly ThickPavilion 34.11°Culet: NoneDepth 67.6%

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 2
Current: $14,487 SGD|Low: $7,639 SGD|High: $14,830 SGD|Avg: $9,624 SGD|-2.3%
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 2, 2026
Retailer 9$7,639 SGD
Retailer 8$8,031 SGD
Retailer 5$8,104 SGD
Retailer 12$8,441 SGD
Retailer 10$8,652 SGD
Retailer 6$8,662 SGD
Retailer 2$8,795 SGD
Retailer 11$8,919 SGD
Retailer 4$9,223 SGD
Retailer 3$9,803 SGD
Retailer 7$12,761 SGD
NZ Jewellers$14,487 SGD

39 data points across 12 retailers

9 retailers$7,639 SGD to $14,487 SGD

A
Cheapest Retailer
-
$7,639 SGD
$5,973 USD
A
Retailer 2
-
$8,031 SGD
$6,280 USD
View
A
Retailer 3
-
$8,104 SGD
£4,990 GBP
View
Retailer 4
-
$8,652 SGD
A$10,408 AUD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$8,662 SGD
$6,773 USD
View
A
Retailer 6
-
$8,795 SGD
$6,877 USD
View
B+
Retailer 7
-
$8,919 SGD
$6,974 USD
View
B+
Retailer 8
-
$12,761 SGD
£7,857 GBP
View
Most Expensive
B
NZ Jewellers
8996cd54-20d8-49ae-966b-2b52284cc1fc · Oct 30
$14,487 SGD
$11,328 USD
View
8 more retailers have this diamond
Prices start from $7,639 SGDSave up to $6,849 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
$7,639 SGD