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Marquise|Natural|GIA

1.20ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 2546858048

Certificate GIA 2546858048

Diamond specifications and retailer prices

From £2,807 GBP
As of November 4, 2026
Save £3,248 GBP (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £6,359 GBP at NZ Jewellers · As of October 17, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2546858048. Listed at 25 retailers as of November 2, 2026, with a 116% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2546858048
Dimensions10.30 × 5.42 × 3.46 mm
L/W Ratio1.90
Top View
10.30 mm5.42 mm1.20 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2546858048
Side View
Table 58.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 63.9%

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: £3,739 GBP|Low: £2,807 GBP|High: £6,128 GBP|Avg: £4,069 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4£2,807 GBP
Retailer 6£3,001 GBP
Retailer 7£3,179 GBP
Retailer 3£3,721 GBP
Retailer 1£3,739 GBP
Retailer 2£4,038 GBP
Retailer 5£6,055 GBP

41 data points across 7 retailers

25 retailers£2,807 GBP to £6,055 GBP

B+
Cheapest Retailer
-
£2,807 GBP
B+
Retailer 2
-
£2,878 GBP
View
B
Retailer 3
-
£2,971 GBP
View
B
Retailer 4
-
£3,001 GBP
View
B
Retailer 5
-
£3,004 GBP
View
B
Retailer 6
-
£3,038 GBP
View
B
Retailer 7
-
£3,179 GBP
View
Final sale: no returns
B
Retailer 8
-
£3,420 GBP
View
Retailer 9
-
£3,444 GBP
View
Price last confirmed 17 days ago
Retailer 10
-
£3,444 GBP
View
Price last confirmed 20 days ago
Retailer 11
-
£3,444 GBP
View
Price last confirmed 21 days ago
B
Retailer 12
-
£3,502 GBP
View
B
Retailer 13
-
£3,591 GBP
View
Retailer 14
-
£3,596 GBP
View
Price last confirmed 14 days ago
B
Retailer 15
-
£3,721 GBP
View
B
Retailer 16
-
£3,739 GBP
View
B
Retailer 17
-
£3,870 GBP
View
B
Retailer 18
-
£3,870 GBP
View
Retailer 19
-
£3,974 GBP
View
Price last confirmed 61 days ago
Retailer 20
-
£3,974 GBP
View
Price last confirmed 18 days ago
B
Retailer 21
-
£3,997 GBP
View
B
Retailer 22
-
£4,038 GBP
View
C
Retailer 23
-
£5,502 GBP
View
B
Retailer 24
-
£6,055 GBP
View
Most Expensive
NZ Jewellers
4cf928d1-3768-460c-999d-df6bff46704a · Oct 17
£6,359 GBP
$8,511 USD
View
Price last confirmed 19 days ago
24 more retailers have this diamond
Prices start from £2,807 GBPSave up to £3,248 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
£2,807 GBP