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Radiant|Natural|GIA

1.50ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 7546274592

Certificate GIA 7546274592

Diamond specifications and retailer prices

From $8,305 SGD
As of November 2, 2026
Save $4,773 SGD (36%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $15,195 SGD at NZ Jewellers · As of September 21, 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 D 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 7546274592. Listed at 6 retailers as of November 2, 2026, with a 57% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle51.58°
Pavilion angle36.22°
OriginNatural
Grading LabGIA
CertificateGIA 7546274592
Dimensions7.42 × 5.72 × 3.95 mm
L/W Ratio1.30
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.42 mm5.72 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7546274592
Side View
Table 70.0%Crown 51.58°GirdlePavilion 36.22°CuletDepth 69.1%

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 2
Current: $8,881 SGD|Low: $7,879 SGD|High: $13,544 SGD|Avg: $9,579 SGD|+5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 5$7,879 SGD
Retailer 2$8,305 SGD
Retailer 4$8,794 SGD
Retailer 1$8,881 SGD
Retailer 7$9,212 SGD
Retailer 6$9,670 SGD
Retailer 8$10,099 SGD
Retailer 3$13,077 SGD

35 data points across 8 retailers

6 retailers$8,305 SGD to $13,077 SGD

A
Cheapest Retailer
-
$8,305 SGD
Retailer 2
-
$8,794 SGD
View
Price last confirmed 16 days ago
B+
Retailer 3
-
$8,881 SGD
View
Retailer 4
-
$9,085 SGD
View
Price last confirmed 46 days ago
B+
Retailer 5
-
$13,077 SGD
View
Most Expensive
NZ Jewellers
a80dbe02-06ee-4ed2-be3f-c6634cda6f54 · Sep 21
$15,195 SGD
$11,856 USD
View
Price last confirmed 46 days ago
5 more retailers have this diamond
Prices start from $8,305 SGDSave up to $4,773 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
$8,305 SGD