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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 1159967716

Certificate GIA 1159967716

Diamond specifications and retailer prices

From $6,130 SGD
$4,795 USD
As of October 31, 2026
Save $7,503 SGD (55%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $13,633 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 1159967716. Listed at 26 retailers as of October 30, 2026, with prices from $6,130 to $13,633, a $7,503 spread on the same certified stone. NZ Jewellers lists it at $13,633. 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
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1159967716
Dimensions7.23 × 5.84 × 3.89 mm
L/W Ratio1.24
Culet sizeNone
Top View
7.23 mm5.84 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1159967716
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.6%

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 31
Current: $8,905 SGD|Low: $5,906 SGD|High: $12,154 SGD|Avg: $7,826 SGD|+2.6%
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
November 2, 2026
Retailer 3$6,130 SGD
Retailer 9$6,475 SGD
Retailer 11$6,497 SGD
Retailer 4$6,897 SGD
Retailer 5$7,061 SGD
Retailer 2$7,384 SGD
Retailer 12$7,384 SGD
Retailer 13$7,517 SGD
Retailer 6$7,819 SGD
Retailer 10$8,058 SGD
Retailer 1$8,905 SGD
Retailer 8$10,015 SGD
Retailer 7$12,010 SGD

44 data points across 13 retailers

26 retailers$6,130 SGD to $13,633 SGD

B+
Cheapest Retailer
-
$6,130 SGD
$4,795 USD
B+
Retailer 2
-
$6,368 SGD
$4,981 USD
View
B+
Retailer 3
-
$6,441 SGD
$5,038 USD
View
B+
Retailer 4
-
$6,475 SGD
$5,065 USD
View
B+
Retailer 5
-
$6,497 SGD
$5,082 USD
View
Final sale: no returns
B+
Retailer 6
-
$6,524 SGD
$5,103 USD
View
B+
Retailer 7
-
$6,703 SGD
A$8,067 AUD
View
B+
Retailer 8
-
$6,874 SGD
CA$7,468 CAD
View
B+
Retailer 9
-
$6,897 SGD
$5,395 USD
View
B+
Retailer 10
-
$7,061 SGD
$5,523 USD
View
B+
Retailer 11
-
$7,384 SGD
$5,776 USD
View
B+
Retailer 12
-
$7,384 SGD
$5,776 USD
View
B+
Retailer 13
-
$7,384 SGD
$5,776 USD
View
B+
Retailer 14
-
$7,517 SGD
$5,880 USD
View
B
Retailer 15
-
$7,785 SGD
$6,090 USD
View
B+
Retailer 16
-
$7,819 SGD
£4,816 GBP
View
Retailer 17
-
$8,058 SGD
A$9,697 AUD
View
Price last confirmed 22 days ago
B
Retailer 18
-
$8,521 SGD
$6,665 USD
View
B
Retailer 19
-
$8,905 SGD
€6,634 EUR
View
Retailer 20
-
$8,988 SGD
$7,031 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$9,235 SGD
$7,224 USD
View
B
Retailer 22
-
$9,712 SGD
A$11,688 AUD
View
B
Retailer 23
-
$10,015 SGD
ZAR 126,559 ZAR
View
C
Retailer 24
-
$11,812 SGD
$9,240 USD
View
B
Retailer 25
-
$12,010 SGD
£7,397 GBP
View
Most Expensive
C
NZ Jewellers
0af57ebc-7dca-4e67-8155-bef61d7e7a1b · Oct 30
$13,633 SGD
$10,664 USD
View
25 more retailers have this diamond
Prices start from $6,130 SGDSave up to $7,503 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
$6,130 SGD