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Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 2558742615

Certificate GIA 2558742615

Diamond specifications and retailer prices

From $5,956 SGD
HK$36,400 HKD
As of November 1, 2026
Save $6,602 SGD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,292 SGD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct 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 2558742615. Listed at 21 retailers as of October 28, 2026, with a 111% 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

1.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558742615
Dimensions7.53 × 5.77 × 3.96 mm
L/W Ratio1.31
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
7.53 mm5.77 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558742615
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.7%

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: $8,682 SGD|Low: $5,956 SGD|High: $12,615 SGD|Avg: $8,680 SGD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$5,956 SGD
Retailer 4$6,348 SGD
Retailer 9$6,975 SGD
Retailer 10$7,334 SGD
Retailer 3$7,624 SGD
Retailer 2$7,898 SGD
Retailer 1$8,682 SGD
Retailer 6$9,764 SGD
Retailer 5$11,709 SGD
Retailer 8$12,558 SGD

32 data points across 10 retailers

21 retailers$5,956 SGD to $12,558 SGD

A
Cheapest Retailer
-
$5,956 SGD
HK$36,400 HKD
A
Retailer 2
-
$6,348 SGD
₹472,908 INR
View
A
Retailer 3
-
$6,631 SGD
$5,187 USD
View
A
Retailer 4
-
$6,797 SGD
View
A
Retailer 5
-
$6,975 SGD
View
A
Retailer 6
-
$7,252 SGD
$5,673 USD
View
A
Retailer 7
-
$7,255 SGD
$5,675 USD
View
A
Retailer 8
-
$7,334 SGD
$5,737 USD
View
Final sale: no returns
A
Retailer 9
-
$7,624 SGD
£4,696 GBP
View
Retailer 10
-
$7,898 SGD
A$9,504 AUD
View
Price last confirmed 29 days ago
Retailer 11
-
$7,947 SGD
$6,216 USD
View
Price last confirmed 17 days ago
Retailer 12
-
$7,947 SGD
$6,216 USD
View
Price last confirmed 16 days ago
Retailer 13
-
$7,947 SGD
$6,216 USD
View
Price last confirmed 15 days ago
B+
Retailer 14
-
$8,148 SGD
$6,374 USD
View
B+
Retailer 15
-
$8,408 SGD
A$10,118 AUD
View
B+
Retailer 16
-
$8,682 SGD
€6,468 EUR
View
Retailer 17
-
$9,170 SGD
$7,173 USD
View
Price last confirmed 14 days ago
B+
Retailer 18
-
$9,764 SGD
ZAR 123,390 ZAR
View
B+
Retailer 19
-
$11,709 SGD
£7,212 GBP
View
B
Retailer 20
-
$12,558 SGD
£7,735 GBP
View
Most Expensive
NZ Jewellers
fe7edb97-4bb4-46b2-ae0e-dfea42feccae · Oct 17
$13,292 SGD
$10,397 USD
View
Price last confirmed 15 days ago
20 more retailers have this diamond
Prices start from $5,956 SGDSave up to $6,602 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
1.50ct Radiant
$5,956 SGD