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Marquise|Natural|GIA

1.20ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 6562597877

Certificate GIA 6562597877

Diamond specifications and retailer prices

From £3,613 GBP
As of November 6, 2026
Save £2,833 GBP (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,446 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6562597877. Listed at 13 retailers as of November 6, 2026, with prices from £3,613 to £6,446, a £2,833 spread on the same certified stone. Wholesale Diamonds Direct lists it at £6,446. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562597877
Dimensions11.25 × 5.26 × 3.34 mm
L/W Ratio2.14
Top View
11.25 mm5.26 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562597877
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.5%

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: £5,038 GBP|Low: £3,613 GBP|High: £6,446 GBP|Avg: £4,551 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
Wholesale Diamonds Direct
November 6, 2026
Retailer 7£3,613 GBP
Retailer 11£3,653 GBP
Retailer 2£3,760 GBP
Retailer 12£3,846 GBP
Retailer 4£3,963 GBP
Retailer 6£4,061 GBP
Retailer 3£4,525 GBP
Retailer 8£4,536 GBP
Retailer 5£4,668 GBP
Retailer 1£5,038 GBP
Retailer 10£6,124 GBP
Retailer 9£6,266 GBP
Wholesale Diamonds Direct£6,446 GBP

7 data points across 13 retailers

13 retailers£3,613 GBP to £6,446 GBP

B+
Cheapest Retailer
-
£3,613 GBP
B+
Retailer 2
-
£3,653 GBP
View
B+
Retailer 3
-
£3,760 GBP
View
B
Retailer 4
-
£3,846 GBP
View
B
Retailer 5
-
£3,963 GBP
View
B
Retailer 6
-
£4,061 GBP
View
B
Retailer 7
-
£4,525 GBP
View
B
Retailer 8
-
£4,536 GBP
View
B
Retailer 9
-
£4,668 GBP
View
B
Retailer 10
-
£5,038 GBP
View
B
Retailer 11
-
£6,124 GBP
View
B
Retailer 12
-
£6,266 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
668871287 · Nov 6
£6,446 GBP
$8,628 USD
View
12 more retailers have this diamond
Prices start from £3,613 GBPSave up to £2,833 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
£3,613 GBP