CaratHunter
Plans
Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 5563258926

Certificate GIA 5563258926

Diamond specifications and retailer prices

From £6,247 GBP
$8,370 USD
As of November 1, 2026
Save £4,801 GBP (43%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £11,048 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise 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 5563258926. Listed at 10 retailers as of November 1, 2026, with prices from £6,247 to £11,048, a £4,801 spread on the same certified stone. MOH London lists it at £11,048. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5563258926
Dimensions10.86 × 5.91 × 3.78 mm
L/W Ratio1.84
Culet sizeNone
Top View
10.86 mm5.91 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5563258926
Side View
Table 56.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.0%

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: £11,048 GBP|Low: £6,247 GBP|High: £11,181 GBP|Avg: £7,843 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4£6,247 GBP
Retailer 8£6,526 GBP
Retailer 5£6,629 GBP
Retailer 6£6,734 GBP
Retailer 7£6,807 GBP
Retailer 9£7,256 GBP
Retailer 3£7,679 GBP
Retailer 2£8,910 GBP
Retailer 10£9,308 GBP
MOH London£11,048 GBP

14 data points across 10 retailers

10 retailers£6,247 GBP to £11,048 GBP

A
Cheapest Retailer
-
£6,247 GBP
$8,370 USD
B+
Retailer 2
-
£6,526 GBP
$8,744 USD
View
B+
Retailer 3
-
£6,629 GBP
A$13,665 AUD
View
B+
Retailer 4
-
£6,734 GBP
$9,022 USD
View
B+
Retailer 5
-
£6,807 GBP
$9,120 USD
View
B+
Retailer 6
-
£7,256 GBP
$9,722 USD
View
B+
Retailer 7
-
£7,679 GBP
View
B+
Retailer 8
-
£8,910 GBP
€11,370 EUR
View
Retailer 9
-
£9,308 GBP
$12,472 USD
View
Price last confirmed 21 days ago
Most Expensive
B
MOH London
86173C01C · Nov 1
£11,048 GBP
View
9 more retailers have this diamond
Prices start from £6,247 GBPSave up to £4,801 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 Marquise
£6,247 GBP