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Round|Natural|GIA

1.50ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7558599604

Certificate GIA 7558599604

Diamond specifications and retailer prices

From £4,057 GBP
As of November 4, 2026
Save £3,125 GBP (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,183 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 7558599604. Listed at 13 retailers as of November 4, 2026, with prices from £4,057 to £7,183, a £3,125 spread on the same certified stone. MOH London lists it at £7,183. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7558599604
Dimensions7.25 × 7.29 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Knot, Feather, Cloud, Needle
Top View
7.25 mm7.29 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558599604
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: £7,183 GBP|Low: £4,057 GBP|High: £7,699 GBP|Avg: £5,339 GBP|-6.6%
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
November 6, 2026
Retailer 3£4,057 GBP
Retailer 15£4,114 GBP
Retailer 12£4,263 GBP
Retailer 6£4,373 GBP
Retailer 13£4,503 GBP
Retailer 14£4,512 GBP
Retailer 9£4,612 GBP
Retailer 8£5,006 GBP
Retailer 7£5,063 GBP
Retailer 2£5,162 GBP
Retailer 4£5,438 GBP
Retailer 11£5,641 GBP
Retailer 10£5,964 GBP
Retailer 5£5,978 GBP
MOH London£7,183 GBP

36 data points across 15 retailers

13 retailers£4,057 GBP to £7,183 GBP

A
Cheapest Retailer
-
£4,057 GBP
A
Retailer 2
-
£4,114 GBP
View
A
Retailer 3
-
£4,263 GBP
View
Retailer 4
-
£4,373 GBP
View
Price last confirmed 22 days ago
A
Retailer 5
-
£4,503 GBP
View
A
Retailer 6
-
£4,512 GBP
View
Final sale: no returns
A
Retailer 7
-
£4,612 GBP
View
A
Retailer 8
-
£5,006 GBP
View
Retailer 9
-
£5,063 GBP
View
Price last confirmed 33 days ago
A
Retailer 10
-
£5,162 GBP
View
B+
Retailer 11
-
£5,641 GBP
View
B+
Retailer 12
-
£5,964 GBP
View
Most Expensive
B+
MOH London
CAF7B46BD · Nov 4
£7,183 GBP
View
12 more retailers have this diamond
Prices start from £4,057 GBPSave up to £3,125 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 Round
£4,057 GBP