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Marquise|Natural|GIA

1.20ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 2557044141

Certificate GIA 2557044141

Diamond specifications and retailer prices

From £2,953 GBP
As of November 6, 2026
Save £3,585 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £6,539 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557044141. Listed at 19 retailers as of November 5, 2026, with prices from £2,953 to £6,539, a £3,585 spread on the same certified stone. NZ Jewellers lists it at £6,539. 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

1.20
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557044141
Dimensions11.32 × 5.66 × 3.24 mm
L/W Ratio2.00
Top View
11.32 mm5.66 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557044141
Side View
Table 56.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 57.2%

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: Nov 6
Current: £6,539 GBP|Low: £2,875 GBP|High: £6,539 GBP|Avg: £3,943 GBP|+1.6%
NZ Jewellers
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 11£2,953 GBP
Retailer 16£2,994 GBP
Retailer 17£3,131 GBP
Retailer 18£3,138 GBP
Retailer 19£3,242 GBP
Retailer 3£3,400 GBP
Retailer 9£3,425 GBP
Retailer 10£3,488 GBP
Retailer 4£3,626 GBP
Retailer 12£3,691 GBP
Retailer 14£3,709 GBP
Retailer 6£3,740 GBP
Retailer 5£3,855 GBP
Retailer 7£3,855 GBP
Retailer 15£3,923 GBP
Retailer 13£3,982 GBP
Retailer 2£5,485 GBP
Retailer 8£6,115 GBP
NZ Jewellers£6,539 GBP

38 data points across 19 retailers

19 retailers£2,953 GBP to £6,539 GBP

B+
Cheapest Retailer
-
£2,953 GBP
B+
Retailer 2
-
£2,994 GBP
View
B
Retailer 3
-
£3,131 GBP
View
B+
Retailer 4
-
£3,138 GBP
View
Final sale: no returns
B+
Retailer 5
-
£3,242 GBP
View
B+
Retailer 6
-
£3,400 GBP
View
B+
Retailer 7
-
£3,425 GBP
View
B
Retailer 8
-
£3,488 GBP
View
B
Retailer 9
-
£3,626 GBP
View
B
Retailer 10
-
£3,691 GBP
View
B+
Retailer 11
-
£3,709 GBP
View
B
Retailer 12
-
£3,740 GBP
View
B
Retailer 13
-
£3,855 GBP
View
B
Retailer 14
-
£3,855 GBP
View
B
Retailer 15
-
£3,923 GBP
View
B
Retailer 16
-
£3,982 GBP
View
B
Retailer 17
-
£5,485 GBP
View
B
Retailer 18
-
£6,115 GBP
View
Most Expensive
B
NZ Jewellers
0cccd910-d686-441f-9049-95fddd47fc57 · Nov 5
£6,539 GBP
$8,752 USD
View
18 more retailers have this diamond
Prices start from £2,953 GBPSave up to £3,585 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+
1.20ct Marquise
£2,953 GBP