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Marquise|Natural|GIA

1.21ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 6562645742

Certificate GIA 6562645742

Diamond specifications and retailer prices

From £2,524 GBP
As of November 5, 2026
Save £2,560 GBP (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,083 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6562645742. Listed at 13 retailers as of November 5, 2026, with prices from £2,524 to £5,083, a £2,560 spread on the same certified stone. Wholesale Diamonds Direct lists it at £5,083. 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

1.21
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.51°
Pavilion angle40.11°
OriginNatural
Grading LabGIA
CertificateGIA 6562645742
Dimensions9.83 × 5.40 × 3.60 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.83 mm5.40 mm1.21 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562645742
Side View
Table 61.0%Crown 43.51°Girdle: THK-VTKPavilion 40.11°Culet: NDepth 66.7%

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 5
Current: £3,663 GBP|Low: £2,519 GBP|High: £5,083 GBP|Avg: £3,485 GBP|+0.1%
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 5£2,524 GBP
Retailer 8£2,871 GBP
Retailer 4£2,894 GBP
Retailer 9£2,950 GBP
Retailer 3£3,018 GBP
Retailer 7£3,067 GBP
Retailer 12£3,110 GBP
Retailer 6£3,211 GBP
Retailer 11£3,603 GBP
Retailer 2£3,623 GBP
Retailer 1£3,663 GBP
Retailer 10£4,805 GBP
Wholesale Diamonds Direct£5,083 GBP

21 data points across 13 retailers

13 retailers£2,524 GBP to £5,083 GBP

B+
Cheapest Retailer
-
£2,524 GBP
B
Retailer 2
-
£2,871 GBP
View
B
Retailer 3
-
£2,894 GBP
View
B
Retailer 4
-
£2,950 GBP
View
B
Retailer 5
-
£3,018 GBP
View
B
Retailer 6
-
£3,067 GBP
View
B
Retailer 7
-
£3,110 GBP
View
B
Retailer 8
-
£3,211 GBP
View
B
Retailer 9
-
£3,603 GBP
View
B
Retailer 10
-
£3,623 GBP
View
B
Retailer 11
-
£3,663 GBP
View
C
Retailer 12
-
£4,805 GBP
View
Most Expensive
C
Wholesale Diamonds Direct
564759975 · Nov 6
£5,083 GBP
$6,804 USD
View
12 more retailers have this diamond
Prices start from £2,524 GBPSave up to £2,560 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+
1.21ct Marquise
£2,524 GBP