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Radiant|Natural|GIA

1.50ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 7546165174

Certificate GIA 7546165174

Diamond specifications and retailer prices

From $6,291 AUD
$4,420 USD
As of October 25, 2026
Save $5,261 AUD (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $11,552 AUD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7546165174. Listed at 7 retailers as of October 23, 2026, with prices from $6,291 to $11,552, a $5,261 spread on the same certified stone. Wholesale Diamonds Direct lists it at $11,552. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7546165174
Dimensions7.68 × 5.76 × 3.89 mm
L/W Ratio1.33
Culet sizeNone
Top View
7.68 mm5.76 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546165174
Side View
Table 69.0%CrownGirdle: THN-VTKPavilionCulet: 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 25
Current: $7,045 AUD|Low: $5,023 AUD|High: $11,773 AUD|Avg: $7,880 AUD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 26, 2026
Retailer 2$5,023 AUD
Retailer 9$6,291 AUD
Retailer 3$6,366 AUD
Retailer 8$6,619 AUD
Retailer 7$6,822 AUD
Retailer 1$7,045 AUD
Retailer 5$7,851 AUD
Retailer 4$8,039 AUD
Retailer 10$9,919 AUD
Retailer 6$10,328 AUD
Wholesale Diamonds Direct$11,552 AUD

35 data points across 11 retailers

7 retailers$6,291 AUD to $11,552 AUD

A
Cheapest Retailer
-
$6,291 AUD
$4,420 USD
A
Retailer 2
-
$6,366 AUD
SGD 6,044 SGD
View
A
Retailer 3
-
$6,619 AUD
$4,650 USD
View
A
Retailer 4
-
$6,822 AUD
SGD 6,477 SGD
View
A
Retailer 5
-
$7,045 AUD
£3,897 GBP
View
A
Retailer 6
-
$7,851 AUD
$5,515 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
503047337 · Oct 23
$11,552 AUD
$8,116 USD
View
6 more retailers have this diamond
Prices start from $6,291 AUDSave up to $5,261 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
$6,291 AUD