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Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 6542466536

Certificate GIA 6542466536

Diamond specifications and retailer prices

From $2,772 SGD
As of November 6, 2026
Save $3,613 SGD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,696 SGD at NZ Jewellers · As of September 30, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542466536. Listed at 18 retailers as of November 4, 2026, with a 130% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542466536
Dimensions7.68 × 5.72 × 3.86 mm
L/W Ratio1.34
Top View
7.68 mm5.72 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542466536
Side View
Table 68.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

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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 6
Current: $3,467 SGD|Low: $2,772 SGD|High: $6,470 SGD|Avg: $4,050 SGD|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 2$2,772 SGD
Retailer 4$2,960 SGD
Retailer 9$3,264 SGD
Retailer 1$3,467 SGD
Retailer 5$3,545 SGD
Retailer 6$3,863 SGD
Retailer 3$3,868 SGD
Retailer 7$4,254 SGD
Retailer 8$4,460 SGD
Retailer 10$6,385 SGD

25 data points across 10 retailers

18 retailers$2,772 SGD to $6,385 SGD

A
Cheapest Retailer
-
$2,772 SGD
A
Retailer 2
-
$2,960 SGD
View
A
Retailer 3
-
$3,264 SGD
View
A
Retailer 4
-
$3,467 SGD
View
A
Retailer 5
-
$3,467 SGD
View
A
Retailer 6
-
$3,545 SGD
View
Retailer 7
-
$3,681 SGD
View
Price last confirmed 30 days ago
Retailer 8
-
$3,681 SGD
View
Price last confirmed 30 days ago
A
Retailer 9
-
$3,688 SGD
View
Retailer 10
-
$3,823 SGD
View
Price last confirmed 38 days ago
A
Retailer 11
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$3,835 SGD
View
A
Retailer 12
-
$3,863 SGD
View
A
Retailer 13
-
$3,868 SGD
View
Retailer 14
-
$4,247 SGD
View
Price last confirmed 29 days ago
A
Retailer 15
-
$4,254 SGD
View
A
Retailer 16
-
$4,460 SGD
View
B
Retailer 17
-
$6,385 SGD
View
Most Expensive
NZ Jewellers
26738c81-d90b-4ff3-af35-ecd2c1c77dc9 · Sep 30
$7,696 SGD
$6,005 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from $2,772 SGDSave up to $3,613 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
$2,772 SGD