Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 2231731143

Certificate GIA 2231731143

Diamond specifications and retailer prices

From $6,404 SGD
$5,009 USD
As of October 26, 2026
Save $5,554 SGD (46%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $13,556 SGD at NZ Jewellers · As of October 9, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2231731143. Listed at 32 retailers as of October 26, 2026, with a 87% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231731143
Dimensions7.34 × 5.83 × 3.94 mm
L/W Ratio1.26
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Etch Channel, Natural
Top View
7.34 mm5.83 mm1.50 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231731143
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.5%

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: Oct 26
Current: $9,869 SGD|Low: $5,390 SGD|High: $12,745 SGD|Avg: $8,056 SGD|+1.2%
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
Retailer 18
Retailer 19
Retailer 20
October 27, 2026
Retailer 13$5,903 SGD
Retailer 5$6,404 SGD
Retailer 18$6,778 SGD
Retailer 11$6,821 SGD
Retailer 2$6,834 SGD
Retailer 3$6,859 SGD
Retailer 8$7,249 SGD
Retailer 16$7,343 SGD
Retailer 12$7,728 SGD
Retailer 19$7,771 SGD
Retailer 6$7,875 SGD
Retailer 7$7,875 SGD
Retailer 20$8,012 SGD
Retailer 10$8,143 SGD
Retailer 4$8,303 SGD
Retailer 14$8,808 SGD
Retailer 9$8,936 SGD
Retailer 1$9,869 SGD
Retailer 15$11,958 SGD
Retailer 17$12,639 SGD

33 data points across 20 retailers

32 retailers$6,404 SGD to $11,958 SGD

A
Cheapest Retailer
-
$6,404 SGD
$5,009 USD
B+
Retailer 2
-
$6,821 SGD
A$8,208 AUD
View
Retailer 3
-
$6,834 SGD
$5,346 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$6,859 SGD
$5,365 USD
View
Price last confirmed 6 days ago
Retailer 5
-
$7,249 SGD
$5,671 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$7,343 SGD
$5,744 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$7,343 SGD
$5,744 USD
View
Price last confirmed 31 days ago
Retailer 8
-
$7,343 SGD
$5,744 USD
View
Price last confirmed 41 days ago
Retailer 9
-
$7,343 SGD
$5,744 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$7,343 SGD
$5,744 USD
View
Price last confirmed 7 days ago
Retailer 11
-
$7,343 SGD
$5,744 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$7,728 SGD
£4,760 GBP
View
Retailer 13
-
$7,771 SGD
$6,079 USD
View
Price last confirmed 12 days ago
Retailer 14
-
$7,875 SGD
$6,160 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$7,875 SGD
$6,160 USD
View
Price last confirmed 7 days ago
Retailer 16
-
$8,012 SGD
A$9,642 AUD
View
Price last confirmed 22 days ago
Retailer 17
-
$8,143 SGD
$6,370 USD
View
Price last confirmed 7 days ago
B
Retailer 18
-
$8,303 SGD
$6,495 USD
View
Retailer 19
-
$8,472 SGD
$6,627 USD
View
Price last confirmed 52 days ago
Retailer 20
-
$8,472 SGD
$6,627 USD
View
Price last confirmed 41 days ago
Retailer 21
-
$8,472 SGD
$6,627 USD
View
Price last confirmed 34 days ago
Retailer 22
-
$8,472 SGD
$6,627 USD
View
Price last confirmed 24 days ago
Retailer 23
-
$8,472 SGD
$6,627 USD
View
Price last confirmed 12 days ago
B
Retailer 24
-
$8,808 SGD
€6,562 EUR
View
Retailer 25
-
$8,936 SGD
$6,990 USD
View
Price last confirmed 18 days ago
B
Retailer 26
-
$9,869 SGD
ZAR 124,720 ZAR
View
B
Retailer 27
-
$11,958 SGD
£7,365 GBP
View
Retailer 28
-
$12,639 SGD
£7,785 GBP
View
Price last confirmed 7 days ago
Retailer 29
-
$13,556 SGD
$10,604 USD
View
Price last confirmed 32 days ago
Retailer 30
-
$13,556 SGD
$10,604 USD
View
Price last confirmed 42 days ago
Retailer 31
-
$13,556 SGD
$10,604 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
45b76ebe-7f99-4bf6-ac14-46a8830868ed · Oct 9
$13,556 SGD
$10,604 USD
View
Price last confirmed 24 days ago
31 more retailers have this diamond
Prices start from $6,404 SGDSave up to $5,554 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
$6,404 SGD