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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 5546565138

Certificate GIA 5546565138

Diamond specifications and retailer prices

From £7,383 GBP
$9,892 USD
As of October 30, 2026
Save £5,227 GBP (41%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £12,610 GBP at MOH London · As of October 29, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546565138. Listed at 12 retailers as of October 29, 2026, with prices from £7,383 to £12,610, a £5,227 spread on the same certified stone. MOH London lists it at £12,610. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle39.97°
Pavilion angle37.22°
OriginNatural
Grading LabGIA
CertificateGIA 5546565138
Dimensions10.72 × 5.81 × 3.80 mm
L/W Ratio1.85
Top View
10.72 mm5.81 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5546565138
Side View
Table 55.0%Crown 39.97°Girdle: ThickPavilion 37.22°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £12,610 GBP|Low: £7,383 GBP|High: £12,610 GBP|Avg: £9,437 GBP|+0.4%
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
October 30, 2026
Retailer 12£7,383 GBP
Retailer 10£7,451 GBP
Retailer 11£7,930 GBP
Retailer 5£8,098 GBP
Retailer 14£8,153 GBP
Retailer 2£8,680 GBP
Retailer 15£8,910 GBP
Retailer 13£9,887 GBP
Retailer 3£9,939 GBP
Retailer 7£10,031 GBP
Retailer 8£10,103 GBP
Retailer 6£10,424 GBP
Retailer 4£10,565 GBP
Retailer 9£11,736 GBP
MOH London£12,610 GBP

9 data points across 15 retailers

12 retailers£7,383 GBP to £12,610 GBP

B+
Cheapest Retailer
-
£7,383 GBP
$9,892 USD
B+
Retailer 2
-
£7,451 GBP
$9,984 USD
View
B+
Retailer 3
-
£7,930 GBP
$10,625 USD
View
B+
Retailer 4
-
£8,098 GBP
$10,851 USD
View
B+
Retailer 5
-
£8,153 GBP
CA$15,172 CAD
View
B+
Retailer 6
-
£8,680 GBP
View
B+
Retailer 7
-
£8,910 GBP
$11,939 USD
View
B
Retailer 8
-
£9,887 GBP
$13,247 USD
View
B
Retailer 9
-
£9,939 GBP
$13,317 USD
View
B+
Retailer 10
-
£10,103 GBP
€12,892 EUR
View
B
Retailer 11
-
£11,736 GBP
ZAR 254,038 ZAR
View
Most Expensive
B
MOH London
01F495AAD · Oct 29
£12,610 GBP
View
11 more retailers have this diamond
Prices start from £7,383 GBPSave up to £5,227 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.

B+
1.50ct Marquise
£7,383 GBP