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Marquise|Natural|GIA

1.20ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 5556672444

Certificate GIA 5556672444

Diamond specifications and retailer prices

From £2,477 GBP
As of November 6, 2026
Save £3,239 GBP (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,716 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 5556672444. Listed at 19 retailers as of November 5, 2026, with prices from £2,477 to £5,716, a £3,239 spread on the same certified stone. NZ Jewellers lists it at £5,716. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5556672444
Dimensions10.60 × 5.49 × 3.49 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
10.60 mm5.49 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5556672444
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.6%

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: £5,716 GBP|Low: £2,552 GBP|High: £5,822 GBP|Avg: £3,721 GBP|-1.8%
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
November 6, 2026
Retailer 2£2,552 GBP
Retailer 4£2,923 GBP
Retailer 13£2,944 GBP
Retailer 7£3,029 GBP
Retailer 11£3,124 GBP
Retailer 10£3,226 GBP
Retailer 3£3,281 GBP
Retailer 16£3,281 GBP
Retailer 14£3,323 GBP
Retailer 9£3,342 GBP
Retailer 5£3,384 GBP
Retailer 17£3,392 GBP
Retailer 12£3,693 GBP
Retailer 6£3,786 GBP
Retailer 15£5,212 GBP
Retailer 8£5,332 GBP
NZ Jewellers£5,716 GBP

24 data points across 17 retailers

19 retailers£2,477 GBP to £5,716 GBP

B+
Cheapest Retailer
-
£2,477 GBP
B+
Retailer 2
-
£2,552 GBP
View
B+
Retailer 3
-
£2,923 GBP
View
B+
Retailer 4
-
£2,944 GBP
View
B
Retailer 5
-
£3,029 GBP
View
Final sale: no returns
B
Retailer 6
-
£3,044 GBP
View
B
Retailer 7
-
£3,124 GBP
View
B+
Retailer 8
-
£3,226 GBP
View
B+
Retailer 9
-
£3,281 GBP
View
B+
Retailer 10
-
£3,281 GBP
View
B+
Retailer 11
-
£3,323 GBP
View
Retailer 12
-
£3,342 GBP
View
Price last confirmed 12 days ago
B
Retailer 13
-
£3,384 GBP
View
B
Retailer 14
-
£3,392 GBP
View
B
Retailer 15
-
£3,693 GBP
View
B
Retailer 16
-
£3,786 GBP
View
B
Retailer 17
-
£5,212 GBP
View
Retailer 18
-
£5,332 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
0ba1fac9-0d20-40e7-abca-d8b5cda14998 · Nov 5
£5,716 GBP
$7,651 USD
View
18 more retailers have this diamond
Prices start from £2,477 GBPSave up to £3,239 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
£2,477 GBP