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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 £2,560 GBP
HK$26,800 HKD
As of November 1, 2026
Save £3,767 GBP (60%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,327 GBP 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 £2,560 to £6,327, a £3,767 spread on the same certified stone. Queensmith lists it at £6,327. 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: £6,327 GBP|Low: £2,532 GBP|High: £6,365 GBP|Avg: £3,812 GBP|+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 1, 2026
Retailer 12£2,560 GBP
Retailer 2£2,736 GBP
Retailer 8£3,010 GBP
Retailer 16£3,151 GBP
Retailer 15£3,251 GBP
Retailer 9£3,308 GBP
Retailer 11£3,367 GBP
Retailer 5£3,414 GBP
Retailer 14£3,414 GBP
Retailer 4£3,500 GBP
Retailer 6£3,526 GBP
Retailer 13£3,863 GBP
Retailer 3£3,939 GBP
Retailer 10£5,438 GBP
Retailer 7£5,948 GBP
Queensmith£6,327 GBP

24 data points across 16 retailers

20 retailers£2,560 GBP to £6,327 GBP

A
Cheapest Retailer
-
£2,560 GBP
HK$26,800 HKD
A
Retailer 2
-
£2,736 GBP
₹349,173 INR
View
A
Retailer 3
-
£3,010 GBP
SGD 5,450 SGD
View
A
Retailer 4
-
£3,129 GBP
$4,193 USD
View
A
Retailer 5
-
£3,151 GBP
$4,222 USD
View
Final sale: no returns
A
Retailer 6
-
£3,251 GBP
SGD 5,887 SGD
View
A
Retailer 7
-
£3,308 GBP
View
A
Retailer 8
-
£3,367 GBP
View
A
Retailer 9
-
£3,395 GBP
A$6,998 AUD
View
A
Retailer 10
-
£3,414 GBP
$4,574 USD
View
Retailer 11
-
£3,414 GBP
$4,574 USD
View
Price last confirmed 14 days ago
Retailer 12
-
£3,435 GBP
$4,603 USD
View
Price last confirmed 16 days ago
Retailer 13
-
£3,435 GBP
$4,603 USD
View
Price last confirmed 15 days ago
A
Retailer 14
-
£3,500 GBP
$4,690 USD
View
A
Retailer 15
-
£3,526 GBP
$4,724 USD
View
A
Retailer 16
-
£3,863 GBP
€4,930 EUR
View
Retailer 17
-
£3,939 GBP
$5,278 USD
View
Price last confirmed 13 days ago
B
Retailer 18
-
£5,438 GBP
View
Retailer 19
-
£5,948 GBP
$7,969 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Queensmith
6551095070 · Oct 28
£6,327 GBP
View
19 more retailers have this diamond
Prices start from £2,560 GBPSave up to £3,767 GBP

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
£2,560 GBP