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Marquise|Natural|GIA

1.50ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 6545793758

Certificate GIA 6545793758

Diamond specifications and retailer prices

From £5,304 GBP
As of November 4, 2026
Save £6,025 GBP (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £11,330 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6545793758. Listed at 13 retailers as of November 4, 2026, with prices from £5,304 to £11,330, a £6,025 spread on the same certified stone. NZ Jewellers lists it at £11,330. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
OriginNatural
Grading LabGIA
CertificateGIA 6545793758
Dimensions10.79 × 5.82 × 3.83 mm
L/W Ratio1.85
Top View
10.79 mm5.82 mm1.50 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 6545793758
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

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: Nov 4
Current: £6,256 GBP|Low: £4,721 GBP|High: £9,554 GBP|Avg: £6,859 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6£5,665 GBP
Retailer 4£5,665 GBP
Retailer 5£6,232 GBP
Retailer 1£6,256 GBP
Retailer 3£7,370 GBP
Retailer 7£7,459 GBP
Retailer 2£9,415 GBP

42 data points across 7 retailers

13 retailers£5,304 GBP to £11,330 GBP

B+
Cheapest Retailer
-
£5,304 GBP
Retailer 2
-
£5,665 GBP
View
Price last confirmed 9 days ago
B+
Retailer 3
-
£5,665 GBP
View
Final sale: no returns
B+
Retailer 4
-
£5,868 GBP
View
B
Retailer 5
-
£6,137 GBP
View
B
Retailer 6
-
£6,232 GBP
View
B+
Retailer 7
-
£6,256 GBP
View
B
Retailer 8
-
£7,081 GBP
View
B
Retailer 9
-
£7,337 GBP
View
B
Retailer 10
-
£7,370 GBP
View
Retailer 11
-
£7,459 GBP
View
Price last confirmed 15 days ago
B
Retailer 12
-
£9,415 GBP
View
Most Expensive
C
NZ Jewellers
b6f4c668-9421-4f4b-ba58-dd9c87a703e4 · Nov 5
£11,330 GBP
$15,165 USD
View
12 more retailers have this diamond
Prices start from £5,304 GBPSave up to £6,025 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
£5,304 GBP