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Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

ID • G/SI1 • GIA 2245026590

Certificate GIA 2245026590

Diamond specifications and retailer prices

From £4,451 GBP
As of November 4, 2026
Save £4,093 GBP (48%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £8,544 GBP at MOH London · As of November 4, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245026590. Listed at 20 retailers as of November 4, 2026, with prices from £4,451 to £8,544, a £4,093 spread on the same certified stone. MOH London lists it at £8,544. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245026590
Dimensions8.15 × 5.78 × 3.86 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
8.15 mm5.78 mm1.50 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245026590
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NDepth 66.9%

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 4
Current: £8,544 GBP|Low: £4,412 GBP|High: £8,914 GBP|Avg: £5,588 GBP|-4.2%
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 7, 2026
Retailer 8£4,451 GBP
Retailer 15£4,523 GBP
Retailer 5£4,763 GBP
Retailer 11£4,970 GBP
Retailer 4£5,017 GBP
Retailer 16£5,140 GBP
Retailer 13£5,144 GBP
Retailer 6£5,252 GBP
Retailer 7£5,298 GBP
Retailer 2£5,431 GBP
Retailer 9£5,569 GBP
Retailer 10£5,894 GBP
Retailer 3£5,948 GBP
Retailer 17£6,429 GBP
Retailer 12£6,568 GBP
Retailer 14£7,499 GBP
MOH London£8,544 GBP

15 data points across 17 retailers

20 retailers£4,451 GBP to £8,544 GBP

A
Cheapest Retailer
-
£4,451 GBP
A
Retailer 2
-
£4,523 GBP
View
A
Retailer 3
-
£4,763 GBP
View
B+
Retailer 4
-
£4,920 GBP
View
B+
Retailer 5
-
£4,955 GBP
View
A
Retailer 6
-
£4,970 GBP
View
Retailer 7
-
£5,012 GBP
View
Price last confirmed 37 days ago
B+
Retailer 8
-
£5,017 GBP
View
B+
Retailer 9
-
£5,140 GBP
View
Final sale: no returns
B+
Retailer 10
-
£5,144 GBP
View
B+
Retailer 11
-
£5,252 GBP
View
B+
Retailer 12
-
£5,298 GBP
View
B+
Retailer 13
-
£5,431 GBP
View
B+
Retailer 14
-
£5,569 GBP
View
B+
Retailer 15
-
£5,894 GBP
View
Retailer 16
-
£5,948 GBP
View
Price last confirmed 16 days ago
B
Retailer 17
-
£6,429 GBP
View
B
Retailer 18
-
£6,568 GBP
View
B
Retailer 19
-
£7,499 GBP
View
Most Expensive
B
MOH London
EB269E7D9 · Nov 4
£8,544 GBP
View
19 more retailers have this diamond
Prices start from £4,451 GBPSave up to £4,093 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
£4,451 GBP