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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 $3,936 AUD
HK$21,600 HKD
As of November 1, 2026
Save $4,835 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,770 AUD 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 $3,936 to $8,770, a $4,835 spread on the same certified stone. MOH London lists it at $8,770. 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: $8,770 AUD|Low: $3,936 AUD|High: $9,468 AUD|Avg: $5,601 AUD|-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 16$3,936 AUD
Retailer 15$4,304 AUD
Retailer 6$4,337 AUD
Retailer 9$4,426 AUD
Retailer 13$4,460 AUD
Retailer 18$4,575 AUD
Retailer 4$4,662 AUD
Retailer 17$4,772 AUD
Retailer 2$5,062 AUD
Retailer 14$5,143 AUD
Retailer 5$5,481 AUD
Retailer 8$5,487 AUD
Retailer 10$6,008 AUD
Retailer 12$6,244 AUD
Retailer 3$6,557 AUD
Retailer 11$7,161 AUD
Retailer 7$8,419 AUD
MOH London$8,770 AUD

24 data points across 18 retailers

19 retailers$3,936 AUD to $8,770 AUD

A
Cheapest Retailer
-
$3,936 AUD
HK$21,600 HKD
A
Retailer 2
-
$4,304 AUD
$3,023 USD
View
A
Retailer 3
-
$4,337 AUD
$3,047 USD
View
A
Retailer 4
-
$4,426 AUD
$3,109 USD
View
A
Retailer 5
-
$4,460 AUD
$3,133 USD
View
Final sale: no returns
A
Retailer 6
-
$4,575 AUD
€3,061 EUR
View
A
Retailer 7
-
$4,662 AUD
$3,275 USD
View
A
Retailer 8
-
$4,772 AUD
$3,352 USD
View
A
Retailer 9
-
$5,062 AUD
£2,800 GBP
View
A
Retailer 10
-
$5,143 AUD
£2,845 GBP
View
A
Retailer 11
-
$5,481 AUD
$3,850 USD
View
A
Retailer 12
-
$5,487 AUD
SGD 5,209 SGD
View
Retailer 13
-
$6,008 AUD
View
Price last confirmed 24 days ago
B+
Retailer 14
-
$6,059 AUD
View
A
Retailer 15
-
$6,244 AUD
€4,177 EUR
View
A
Retailer 16
-
$6,557 AUD
ZAR 74,412 ZAR
View
B+
Retailer 17
-
$7,161 AUD
$5,030 USD
View
Retailer 18
-
$8,419 AUD
$5,914 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
401DF6A1A · Nov 1
$8,770 AUD
£4,851 GBP
View
18 more retailers have this diamond
Prices start from $3,936 AUDSave up to $4,835 AUD

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
$3,936 AUD