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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6562638922

Certificate GIA 6562638922

Diamond specifications and retailer prices

From £3,421 GBP
As of November 5, 2026
Save £2,614 GBP (43%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,035 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562638922. Listed at 16 retailers as of November 5, 2026, with prices from £3,421 to £6,035, a £2,614 spread on the same certified stone. Wholesale Diamonds Direct lists it at £6,035. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.83°
Pavilion angle40.01°
OriginNatural
Grading LabGIA
CertificateGIA 6562638922
Dimensions10.32 × 5.45 × 3.50 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.32 mm5.45 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562638922
Side View
Table 60.0%Crown 39.83°Girdle: STK-THKPavilion 40.01°Culet: NDepth 64.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,716 GBP|Low: £3,421 GBP|High: £6,035 GBP|Avg: £4,289 GBP
Retailer 1
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
Wholesale Diamonds Direct
November 6, 2026
Retailer 13£3,421 GBP
Retailer 7£3,444 GBP
Retailer 10£3,482 GBP
Retailer 14£3,520 GBP
Retailer 6£3,600 GBP
Retailer 11£3,616 GBP
Retailer 12£3,710 GBP
Retailer 9£3,780 GBP
Retailer 4£4,072 GBP
Retailer 5£4,258 GBP
Retailer 2£4,259 GBP
Retailer 8£4,371 GBP
Retailer 1£4,716 GBP
Retailer 15£5,733 GBP
Retailer 3£5,865 GBP
Wholesale Diamonds Direct£6,035 GBP

21 data points across 16 retailers

16 retailers£3,421 GBP to £6,035 GBP

B+
Cheapest Retailer
-
£3,421 GBP
B+
Retailer 2
-
£3,444 GBP
View
B+
Retailer 3
-
£3,482 GBP
View
B+
Retailer 4
-
£3,520 GBP
View
B
Retailer 5
-
£3,600 GBP
View
B
Retailer 6
-
£3,616 GBP
View
B
Retailer 7
-
£3,710 GBP
View
B
Retailer 8
-
£3,780 GBP
View
B
Retailer 9
-
£4,072 GBP
View
B
Retailer 10
-
£4,258 GBP
View
B
Retailer 11
-
£4,259 GBP
View
B
Retailer 12
-
£4,371 GBP
View
B
Retailer 13
-
£4,716 GBP
View
B
Retailer 14
-
£5,733 GBP
View
B
Retailer 15
-
£5,865 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
564760092 · Nov 6
£6,035 GBP
$8,078 USD
View
15 more retailers have this diamond
Prices start from £3,421 GBPSave up to £2,614 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
£3,421 GBP