CaratHunter
Plans
Radiant|Natural|GIA

1.50ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 6552075958

Certificate GIA 6552075958

Diamond specifications and retailer prices

From $5,339 AUD
HK$29,300 HKD
As of November 1, 2026
Save $7,172 AUD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,511 AUD at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552075958. Listed at 19 retailers as of October 28, 2026, with prices from $5,339 to $12,511, a $7,172 spread on the same certified stone. Queensmith lists it at $12,511. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552075958
Dimensions7.85 × 5.87 × 4.00 mm
L/W Ratio1.34
Top View
7.85 mm5.87 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552075958
Side View
Table 71.0%CrownGirdle: STK-THKPavilionCulet: 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: Nov 1
Current: $12,511 AUD|Low: $5,339 AUD|High: $12,611 AUD|Avg: $7,841 AUD|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$5,339 AUD
Retailer 2$5,689 AUD
Retailer 10$6,244 AUD
Retailer 8$6,506 AUD
Retailer 3$6,829 AUD
Retailer 5$7,010 AUD
Retailer 9$7,265 AUD
Retailer 4$7,975 AUD
Retailer 6$11,228 AUD
Queensmith$12,511 AUD

25 data points across 10 retailers

19 retailers$5,339 AUD to $12,511 AUD

A
Cheapest Retailer
-
$5,339 AUD
HK$29,300 HKD
A
Retailer 2
-
$5,689 AUD
₹380,577 INR
View
A
Retailer 3
-
$6,244 AUD
SGD 5,927 SGD
View
A
Retailer 4
-
$6,493 AUD
$4,561 USD
View
A
Retailer 5
-
$6,506 AUD
$4,570 USD
View
Final sale: no returns
Retailer 6
-
$6,787 AUD
SGD 6,443 SGD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$6,829 AUD
£3,777 GBP
View
A
Retailer 8
-
$6,994 AUD
View
A
Retailer 9
-
$7,010 AUD
£3,877 GBP
View
Retailer 10
-
$7,121 AUD
$5,002 USD
View
Price last confirmed 16 days ago
Retailer 11
-
$7,121 AUD
$5,002 USD
View
Price last confirmed 15 days ago
Retailer 12
-
$7,121 AUD
$5,002 USD
View
Price last confirmed 17 days ago
A
Retailer 13
-
$7,265 AUD
$5,103 USD
View
B+
Retailer 14
-
$7,975 AUD
€5,335 EUR
View
Retailer 15
-
$8,217 AUD
$5,772 USD
View
Price last confirmed 14 days ago
Retailer 16
-
$8,405 AUD
$5,904 USD
View
Price last confirmed 56 days ago
B+
Retailer 17
-
$11,228 AUD
£6,210 GBP
View
Retailer 18
-
$12,407 AUD
$8,715 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Queensmith
6552075958 · Oct 28
$12,511 AUD
£6,920 GBP
View
18 more retailers have this diamond
Prices start from $5,339 AUDSave up to $7,172 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
$5,339 AUD