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Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 5566006502

Certificate GIA 5566006502

Diamond specifications and retailer prices

From $8,304 SGD
$6,493 USD
As of November 1, 2026
Save $5,374 SGD (39%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $16,413 SGD at NZ Jewellers · As of October 21, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566006502. Listed at 16 retailers as of November 1, 2026, with a 65% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.91°
OriginNatural
Grading LabGIA
CertificateGIA 5566006502
Dimensions7.85 × 5.79 × 3.86 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.85 mm5.79 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566006502
Side View
Table 67.0%Crown 47.91°GirdlePavilionCulet: 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: Nov 1
Current: $16,413 SGD|Low: $8,304 SGD|High: $17,063 SGD|Avg: $10,590 SGD|-3.8%
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
Retailer 16
November 2, 2026
Retailer 3$8,304 SGD
Retailer 6$8,558 SGD
Retailer 13$9,055 SGD
Retailer 5$9,057 SGD
Retailer 2$9,247 SGD
Retailer 10$9,253 SGD
Retailer 8$9,417 SGD
Retailer 16$9,462 SGD
Retailer 7$9,813 SGD
Retailer 15$9,964 SGD
Retailer 14$10,023 SGD
Retailer 9$10,721 SGD
Retailer 4$11,323 SGD
Retailer 12$12,057 SGD
Retailer 11$13,677 SGD
NZ Jewellers$16,413 SGD

25 data points across 16 retailers

16 retailers$8,304 SGD to $13,677 SGD

A
Cheapest Retailer
-
$8,304 SGD
$6,493 USD
A
Retailer 2
-
$8,558 SGD
$6,692 USD
View
B+
Retailer 3
-
$9,055 SGD
$7,080 USD
View
B+
Retailer 4
-
$9,057 SGD
$7,082 USD
View
Final sale: no returns
B+
Retailer 5
-
$9,247 SGD
£5,693 GBP
View
B+
Retailer 6
-
$9,253 SGD
£5,697 GBP
View
Retailer 7
-
$9,417 SGD
$7,363 USD
View
Price last confirmed 17 days ago
Retailer 8
-
$9,462 SGD
A$11,382 AUD
View
Price last confirmed 11 days ago
Retailer 9
-
$9,813 SGD
$7,673 USD
View
Price last confirmed 11 days ago
Retailer 10
-
$9,964 SGD
$7,791 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$10,023 SGD
$7,837 USD
View
B+
Retailer 12
-
$10,721 SGD
€7,984 EUR
View
Retailer 13
-
$11,323 SGD
$8,854 USD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
$12,057 SGD
ZAR 152,310 ZAR
View
B
Retailer 15
-
$13,677 SGD
£8,421 GBP
View
Most Expensive
NZ Jewellers
6fae2622-e45e-4ac6-8d72-ae0669f0c512 · Oct 21
$16,413 SGD
$12,834 USD
View
Price last confirmed 12 days ago
15 more retailers have this diamond
Prices start from $8,304 SGDSave up to $5,374 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
$8,304 SGD