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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 6455634917

Certificate GIA 6455634917

Diamond specifications and retailer prices

From $3,535 SGD
HK$21,600 HKD
As of November 1, 2026
Save $4,341 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,876 SGD at MOH London · As of November 1, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6455634917. Listed at 19 retailers as of November 1, 2026, with prices from $3,535 to $7,876, a $4,341 spread on the same certified stone. MOH London lists it at $7,876. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 6455634917
Dimensions6.20 × 6.17 × 4.18 mm
L/W Ratio1.00
Top View
6.20 mm6.17 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6455634917
Side View
Table 64.0%CrownGirdle: Slightly ThickPavilion 42.2°Culet: NoneDepth 67.8%

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 1
Current: $7,876 SGD|Low: $3,535 SGD|High: $8,503 SGD|Avg: $5,030 SGD|-7.4%
MOH London
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
November 2, 2026
Retailer 15$3,535 SGD
Retailer 14$3,865 SGD
Retailer 6$3,895 SGD
Retailer 9$3,975 SGD
Retailer 12$4,005 SGD
Retailer 18$4,108 SGD
Retailer 4$4,187 SGD
Retailer 16$4,286 SGD
Retailer 17$4,469 SGD
Retailer 13$4,619 SGD
Retailer 5$4,922 SGD
Retailer 8$4,928 SGD
Retailer 10$5,396 SGD
Retailer 11$5,607 SGD
Retailer 3$5,888 SGD
Retailer 2$6,430 SGD
Retailer 7$7,560 SGD
MOH London$7,876 SGD

24 data points across 18 retailers

19 retailers$3,535 SGD to $7,876 SGD

A
Cheapest Retailer
-
$3,535 SGD
HK$21,600 HKD
A
Retailer 2
-
$3,865 SGD
$3,023 USD
View
A
Retailer 3
-
$3,895 SGD
$3,047 USD
View
A
Retailer 4
-
$3,975 SGD
$3,109 USD
View
A
Retailer 5
-
$4,005 SGD
$3,133 USD
View
Final sale: no returns
A
Retailer 6
-
$4,108 SGD
€3,061 EUR
View
A
Retailer 7
-
$4,187 SGD
$3,275 USD
View
A
Retailer 8
-
$4,286 SGD
$3,352 USD
View
A
Retailer 9
-
$4,469 SGD
£2,752 GBP
View
A
Retailer 10
-
$4,619 SGD
£2,845 GBP
View
A
Retailer 11
-
$4,922 SGD
$3,850 USD
View
A
Retailer 12
-
$4,928 SGD
View
Retailer 13
-
$5,396 SGD
A$6,493 AUD
View
Price last confirmed 24 days ago
B+
Retailer 14
-
$5,441 SGD
A$6,548 AUD
View
A
Retailer 15
-
$5,607 SGD
€4,177 EUR
View
A
Retailer 16
-
$5,888 SGD
ZAR 74,412 ZAR
View
B+
Retailer 17
-
$6,430 SGD
$5,030 USD
View
Retailer 18
-
$7,560 SGD
$5,914 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
401DF6A1A · Nov 1
$7,876 SGD
£4,851 GBP
View
18 more retailers have this diamond
Prices start from $3,535 SGDSave up to $4,341 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
$3,535 SGD