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Radiant|Natural|GIA

1.50ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 6551095070

Certificate GIA 6551095070

Diamond specifications and retailer prices

From $4,884 AUD
HK$26,800 HKD
As of November 1, 2026
Save $7,185 AUD (60%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,068 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 6551095070. Listed at 20 retailers as of October 28, 2026, with prices from $4,884 to $12,068, a $7,185 spread on the same certified stone. Queensmith lists it at $12,068. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551095070
Dimensions7.30 × 5.73 × 4.01 mm
L/W Ratio1.27
Top View
7.30 mm5.73 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551095070
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $12,068 AUD|Low: $4,829 AUD|High: $12,141 AUD|Avg: $7,278 AUD|+2.3%
Queensmith
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
November 2, 2026
Retailer 13$4,884 AUD
Retailer 10$5,219 AUD
Retailer 8$5,741 AUD
Retailer 2$5,948 AUD
Retailer 16$6,202 AUD
Retailer 11$6,309 AUD
Retailer 9$6,475 AUD
Retailer 5$6,512 AUD
Retailer 15$6,512 AUD
Retailer 4$6,677 AUD
Retailer 6$6,725 AUD
Retailer 14$7,369 AUD
Retailer 3$7,514 AUD
Retailer 12$10,372 AUD
Retailer 7$11,345 AUD
Queensmith$12,068 AUD

24 data points across 16 retailers

20 retailers$4,884 AUD to $12,068 AUD

A
Cheapest Retailer
-
$4,884 AUD
HK$26,800 HKD
A
Retailer 2
-
$5,219 AUD
₹349,173 INR
View
A
Retailer 3
-
$5,741 AUD
SGD 5,450 SGD
View
A
Retailer 4
-
$5,948 AUD
$4,178 USD
View
Final sale: no returns
A
Retailer 5
-
$5,969 AUD
$4,193 USD
View
A
Retailer 6
-
$6,202 AUD
SGD 5,887 SGD
View
A
Retailer 7
-
$6,309 AUD
£3,490 GBP
View
A
Retailer 8
-
$6,475 AUD
£3,582 GBP
View
A
Retailer 9
-
$6,476 AUD
View
A
Retailer 10
-
$6,512 AUD
$4,574 USD
View
Retailer 11
-
$6,512 AUD
$4,574 USD
View
Price last confirmed 14 days ago
Retailer 12
-
$6,553 AUD
$4,603 USD
View
Price last confirmed 17 days ago
Retailer 13
-
$6,553 AUD
$4,603 USD
View
Price last confirmed 16 days ago
A
Retailer 14
-
$6,677 AUD
$4,690 USD
View
A
Retailer 15
-
$6,725 AUD
$4,724 USD
View
A
Retailer 16
-
$7,369 AUD
€4,930 EUR
View
Retailer 17
-
$7,514 AUD
$5,278 USD
View
Price last confirmed 14 days ago
B
Retailer 18
-
$10,372 AUD
£5,737 GBP
View
Retailer 19
-
$11,345 AUD
$7,969 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Queensmith
6551095070 · Oct 28
$12,068 AUD
£6,675 GBP
View
19 more retailers have this diamond
Prices start from $4,884 AUDSave up to $7,185 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
$4,884 AUD