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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 2507747553

Certificate GIA 2507747553

Diamond specifications and retailer prices

From $8,322 SGD
$6,510 USD
As of October 28, 2026
Save $9,626 SGD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $17,949 SGD at NZ Jewellers · As of October 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507747553. Listed at 19 retailers as of October 28, 2026, with prices from $8,322 to $17,949, a $9,626 spread on the same certified stone. NZ Jewellers lists it at $17,949. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2507747553
Dimensions8.11 × 5.77 × 3.98 mm
L/W Ratio1.41
Top View
8.11 mm5.77 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507747553
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $17,949 SGD|Low: $8,322 SGD|High: $17,949 SGD|Avg: $11,266 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8$8,322 SGD
Retailer 3$8,974 SGD
Retailer 11$8,974 SGD
Retailer 10$9,722 SGD
Retailer 9$9,872 SGD
Retailer 4$10,131 SGD
Retailer 7$10,293 SGD
Retailer 2$11,098 SGD
Retailer 6$13,184 SGD
Retailer 5$14,956 SGD
NZ Jewellers$17,949 SGD

45 data points across 11 retailers

19 retailers$8,322 SGD to $17,949 SGD

B+
Cheapest Retailer
-
$8,322 SGD
$6,510 USD
B+
Retailer 2
-
$8,480 SGD
$6,633 USD
View
B
Retailer 3
-
$8,974 SGD
$7,020 USD
View
B
Retailer 4
-
$8,974 SGD
$7,020 USD
View
B
Retailer 5
-
$9,050 SGD
$7,079 USD
View
B
Retailer 6
-
$9,722 SGD
$7,605 USD
View
B
Retailer 7
-
$9,872 SGD
$7,722 USD
View
B
Retailer 8
-
$10,131 SGD
£6,240 GBP
View
Retailer 9
-
$10,293 SGD
A$12,386 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$10,638 SGD
$8,321 USD
View
B
Retailer 11
-
$10,726 SGD
$8,390 USD
View
B
Retailer 12
-
$10,726 SGD
$8,390 USD
View
B
Retailer 13
-
$10,808 SGD
$8,454 USD
View
B
Retailer 14
-
$11,084 SGD
$8,670 USD
View
B
Retailer 15
-
$11,098 SGD
€8,268 EUR
View
B
Retailer 16
-
$11,218 SGD
$8,775 USD
View
B
Retailer 17
-
$13,184 SGD
ZAR 166,605 ZAR
View
B
Retailer 18
-
$14,956 SGD
£9,212 GBP
View
Most Expensive
C
NZ Jewellers
d28598f7-8273-41f0-a3c3-53f2e777a7d0 · Oct 30
$17,949 SGD
$14,040 USD
View
18 more retailers have this diamond
Prices start from $8,322 SGDSave up to $9,626 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.

B+
1.50ct Radiant
$8,322 SGD