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Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 7551478920

Certificate GIA 7551478920

Diamond specifications and retailer prices

From $6,575 SGD
As of November 1, 2026
Save $5,683 SGD (46%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $13,916 SGD at NZ Jewellers · As of September 20, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551478920. Listed at 23 retailers as of November 1, 2026, with a 86% 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551478920
Dimensions7.54 × 5.73 × 3.92 mm
L/W Ratio1.32
Culet sizeNone
Top View
7.54 mm5.73 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551478920
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

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 1
Current: $7,923 SGD|Low: $6,235 SGD|High: $12,546 SGD|Avg: $8,647 SGD
Retailer 1
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 6, 2026
Retailer 3$6,575 SGD
Retailer 2$7,015 SGD
Retailer 5$7,437 SGD
Retailer 12$7,454 SGD
Retailer 16$7,538 SGD
Retailer 15$7,629 SGD
Retailer 1$7,923 SGD
Retailer 9$7,981 SGD
Retailer 6$8,407 SGD
Retailer 8$8,407 SGD
Retailer 13$8,510 SGD
Retailer 4$8,689 SGD
Retailer 11$9,088 SGD
Retailer 7$9,175 SGD
Retailer 14$12,180 SGD
Retailer 10$12,257 SGD

32 data points across 16 retailers

23 retailers$6,575 SGD to $12,257 SGD

A
Cheapest Retailer
-
$6,575 SGD
B+
Retailer 2
-
$7,015 SGD
View
B+
Retailer 3
-
$7,437 SGD
View
B+
Retailer 4
-
$7,454 SGD
View
Retailer 5
-
$7,538 SGD
View
Price last confirmed 46 days ago
Retailer 6
-
$7,538 SGD
View
Price last confirmed 38 days ago
Retailer 7
-
$7,538 SGD
View
Price last confirmed 37 days ago
B+
Retailer 8
-
$7,629 SGD
View
B+
Retailer 9
-
$7,923 SGD
View
B+
Retailer 10
-
$7,981 SGD
View
B+
Retailer 11
-
$8,407 SGD
View
B+
Retailer 12
-
$8,407 SGD
View
B+
Retailer 13
-
$8,510 SGD
View
B
Retailer 14
-
$8,689 SGD
View
Retailer 15
-
$8,697 SGD
View
Price last confirmed 62 days ago
Retailer 16
-
$8,697 SGD
View
Price last confirmed 39 days ago
Retailer 17
-
$8,697 SGD
View
Price last confirmed 46 days ago
B
Retailer 18
-
$9,088 SGD
View
Retailer 19
-
$9,175 SGD
View
Price last confirmed 15 days ago
Retailer 20
-
$12,180 SGD
View
Price last confirmed 11 days ago
B
Retailer 21
-
$12,257 SGD
View
Retailer 22
-
$13,916 SGD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
ce6e203c-c250-486e-8e7a-41ef796e6950 · Sep 20
$13,916 SGD
$10,858 USD
View
Price last confirmed 47 days ago
22 more retailers have this diamond
Prices start from $6,575 SGDSave up to $5,683 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
$6,575 SGD