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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 1547202055

Certificate GIA 1547202055

Diamond specifications and retailer prices

From $6,438 AUD
$4,522 USD
As of October 31, 2026
Save $6,137 AUD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,574 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 1547202055. Listed at 20 retailers as of October 31, 2026, with prices from $6,438 to $12,574, a $6,137 spread on the same certified stone. MOH London lists it at $12,574. 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
SymmetryExcellent
FluorescenceFaint
Crown angle43.5°
Pavilion angle56.8°
OriginNatural
Grading LabGIA
CertificateGIA 1547202055
Dimensions7.62 × 5.93 × 4.04 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle, Natural
Top View
7.62 mm5.93 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1547202055
Side View
Table 68.0%Crown 43.5°Girdle: STK-THKPavilion 56.8°Culet: NoneDepth 68.2%

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 31
Current: $12,574 AUD|Low: $6,183 AUD|High: $12,726 AUD|Avg: $8,370 AUD|-1.2%
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
November 2, 2026
Retailer 14$6,438 AUD
Retailer 13$6,801 AUD
Retailer 4$6,829 AUD
Retailer 3$6,924 AUD
Retailer 6$7,644 AUD
Retailer 17$7,887 AUD
Retailer 15$7,919 AUD
Retailer 16$7,938 AUD
Retailer 10$8,325 AUD
Retailer 12$8,470 AUD
Retailer 7$8,470 AUD
Retailer 8$8,470 AUD
Retailer 9$8,741 AUD
Retailer 2$9,323 AUD
Retailer 5$9,414 AUD
Retailer 11$10,486 AUD
MOH London$12,574 AUD

31 data points across 17 retailers

20 retailers$6,438 AUD to $12,574 AUD

A
Cheapest Retailer
-
$6,438 AUD
$4,522 USD
A
Retailer 2
-
$6,668 AUD
$4,684 USD
View
A
Retailer 3
-
$6,742 AUD
$4,736 USD
View
A
Retailer 4
-
$6,801 AUD
$4,777 USD
View
Final sale: no returns
A
Retailer 5
-
$6,829 AUD
$4,797 USD
View
Retailer 6
-
$6,924 AUD
$4,864 USD
View
Price last confirmed 18 days ago
A
Retailer 7
-
$7,027 AUD
View
B+
Retailer 8
-
$7,644 AUD
$5,370 USD
View
B+
Retailer 9
-
$7,887 AUD
CA$7,694 CAD
View
B+
Retailer 10
-
$7,919 AUD
View
B+
Retailer 11
-
$7,938 AUD
$5,576 USD
View
B+
Retailer 12
-
$8,325 AUD
£4,605 GBP
View
Retailer 13
-
$8,470 AUD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$8,470 AUD
$5,950 USD
View
B+
Retailer 15
-
$8,470 AUD
$5,950 USD
View
B+
Retailer 16
-
$8,741 AUD
$6,140 USD
View
B+
Retailer 17
-
$9,323 AUD
€6,237 EUR
View
Retailer 18
-
$9,414 AUD
$6,613 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$10,486 AUD
ZAR 119,000 ZAR
View
Most Expensive
B
MOH London
F9D4C5198 · Nov 1
$12,574 AUD
£6,955 GBP
View
19 more retailers have this diamond
Prices start from $6,438 AUDSave up to $6,137 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
$6,438 AUD