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Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

ID • H/SI1 • GIA 1559766762

Certificate GIA 1559766762

Diamond specifications and retailer prices

From $7,426 SGD
$5,809 USD
As of November 2, 2026
Save $5,903 SGD (44%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $14,636 SGD at NZ Jewellers · As of September 29, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559766762. Listed at 25 retailers as of October 28, 2026, with a 79% 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559766762
Dimensions7.88 × 5.79 × 3.98 mm
L/W Ratio1.36
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Indented Natural
Top View
7.88 mm5.79 mm1.50 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1559766762
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.7%

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: Nov 2
Current: $8,369 SGD|Low: $6,841 SGD|High: $13,419 SGD|Avg: $8,928 SGD|+0.3%
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
Retailer 17
November 2, 2026
Retailer 8$7,060 SGD
Retailer 9$7,277 SGD
Retailer 17$7,426 SGD
Retailer 15$7,677 SGD
Retailer 5$7,684 SGD
Retailer 2$7,760 SGD
Retailer 4$7,928 SGD
Retailer 16$8,046 SGD
Retailer 1$8,369 SGD
Retailer 11$8,519 SGD
Retailer 7$8,582 SGD
Retailer 3$9,089 SGD
Retailer 10$9,704 SGD
Retailer 6$9,837 SGD
Retailer 12$10,913 SGD
Retailer 13$13,156 SGD
Retailer 14$13,329 SGD

32 data points across 17 retailers

25 retailers$7,426 SGD to $13,329 SGD

Retailer 1
-
$6,513 SGD
HK$39,800 HKD
Price last confirmed 25 days ago
Retailer 2
-
$7,277 SGD
$5,692 USD
View
Price last confirmed 32 days ago
B+
Retailer 3
-
$7,426 SGD
$5,809 USD
View
Final sale: no returns
Retailer 4
-
$7,489 SGD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
$7,677 SGD
$6,005 USD
View
B+
Retailer 6
-
$7,684 SGD
View
B+
Retailer 7
-
$7,760 SGD
$6,070 USD
View
B+
Retailer 8
-
$7,928 SGD
$6,202 USD
View
B+
Retailer 9
-
$7,990 SGD
$6,250 USD
View
B+
Retailer 10
-
$8,046 SGD
$6,294 USD
View
B+
Retailer 11
-
$8,369 SGD
£5,155 GBP
View
B+
Retailer 12
-
$8,519 SGD
£5,247 GBP
View
Retailer 13
-
$8,582 SGD
A$10,328 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$8,640 SGD
A$10,398 AUD
View
Retailer 15
-
$8,751 SGD
$6,845 USD
View
Price last confirmed 32 days ago
Retailer 16
-
$8,886 SGD
$6,951 USD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$9,089 SGD
$7,110 USD
View
B+
Retailer 18
-
$9,704 SGD
€7,229 EUR
View
Retailer 19
-
$9,837 SGD
$7,695 USD
View
Price last confirmed 18 days ago
Retailer 20
-
$10,097 SGD
$7,898 USD
View
Price last confirmed 34 days ago
Retailer 21
-
$10,499 SGD
$8,213 USD
View
Price last confirmed 62 days ago
B
Retailer 22
-
$10,913 SGD
ZAR 137,909 ZAR
View
B
Retailer 23
-
$13,156 SGD
£8,103 GBP
View
B
Retailer 24
-
$13,329 SGD
£8,210 GBP
View
Most Expensive
NZ Jewellers
721cd6c7-4b3d-4f06-9213-ed077d3b9afb · Sep 29
$14,636 SGD
$11,449 USD
View
Price last confirmed 33 days ago
24 more retailers have this diamond
Prices start from $7,426 SGDSave up to $5,903 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
$7,426 SGD