Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 5543731644

Certificate GIA 5543731644

Diamond specifications and retailer prices

From £6,884 GBP
A$14,212 AUD
As of October 29, 2026
Save £4,456 GBP (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £11,340 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5543731644. Listed at 14 retailers as of October 29, 2026, with prices from £6,884 to £11,340, a £4,456 spread on the same certified stone. MOH London lists it at £11,340. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.94°
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 5543731644
Dimensions10.81 × 5.83 × 3.80 mm
L/W Ratio1.85
Top View
10.81 mm5.83 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543731644
Side View
Table 61.0%Crown 40.94°Girdle: THN-VTKPavilion 40.7°Culet: NoneDepth 65.2%

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 29
Current: £11,340 GBP|Low: £7,559 GBP|High: £12,234 GBP|Avg: £9,279 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
October 29, 2026
Retailer 9£7,559 GBP
Retailer 2£7,963 GBP
Retailer 8£8,080 GBP
Retailer 12£8,102 GBP
Retailer 5£8,185 GBP
Retailer 7£8,644 GBP
Retailer 3£8,778 GBP
Retailer 10£8,912 GBP
Retailer 6£9,234 GBP
Retailer 11£10,583 GBP
MOH London£11,340 GBP
Retailer 4£12,234 GBP

30 data points across 12 retailers

14 retailers£6,884 GBP to £11,340 GBP

B+
Cheapest Retailer
-
£6,884 GBP
A$14,212 AUD
Retailer 2
-
£7,427 GBP
$9,967 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£7,559 GBP
$10,144 USD
View
B+
Retailer 4
-
£7,963 GBP
View
Retailer 5
-
£8,080 GBP
A$16,682 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
£8,185 GBP
View
B
Retailer 7
-
£8,644 GBP
$11,600 USD
View
Retailer 8
-
£8,778 GBP
$11,779 USD
View
Price last confirmed 32 days ago
Retailer 9
-
£8,912 GBP
$11,960 USD
View
Price last confirmed 32 days ago
B
Retailer 10
-
£8,986 GBP
$12,058 USD
View
B
Retailer 11
-
£9,234 GBP
€11,802 EUR
View
Retailer 12
-
£10,128 GBP
$13,591 USD
View
Price last confirmed 34 days ago
Retailer 13
-
£10,583 GBP
ZAR 229,437 ZAR
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
50F80338C · Oct 29
£11,340 GBP
View
13 more retailers have this diamond
Prices start from £6,884 GBPSave up to £4,456 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
£6,884 GBP