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Marquise|Natural|GIA

1.21ct J SI2 Marquise Natural Diamond

VG • J/SI2 • GIA 2536739391

Certificate GIA 2536739391

Diamond specifications and retailer prices

From £2,643 GBP
As of November 5, 2026
Save £1,794 GBP (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,437 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 J 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 2536739391. Listed at 10 retailers as of November 5, 2026, with prices from £2,643 to £4,437, a £1,794 spread on the same certified stone. Wholesale Diamonds Direct lists it at £4,437. 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
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536739391
Dimensions10.44 × 5.50 × 3.49 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.44 mm5.50 mm1.21 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536739391
Side View
Table 61.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.4%

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: £3,487 GBP|Low: £2,643 GBP|High: £4,533 GBP|Avg: £3,289 GBP|-11.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 7, 2026
Retailer 4£2,643 GBP
Retailer 9£2,968 GBP
Retailer 7£3,025 GBP
Retailer 5£3,145 GBP
Retailer 8£3,145 GBP
Retailer 6£3,250 GBP
Retailer 3£3,368 GBP
Retailer 2£3,428 GBP
Retailer 1£3,487 GBP
Wholesale Diamonds Direct£4,437 GBP

28 data points across 10 retailers

10 retailers£2,643 GBP to £4,437 GBP

B+
Cheapest Retailer
-
£2,643 GBP
B
Retailer 2
-
£2,968 GBP
View
B
Retailer 3
-
£3,025 GBP
View
B
Retailer 4
-
£3,145 GBP
View
B
Retailer 5
-
£3,145 GBP
View
B
Retailer 6
-
£3,250 GBP
View
B
Retailer 7
-
£3,368 GBP
View
B
Retailer 8
-
£3,428 GBP
View
B
Retailer 9
-
£3,487 GBP
View
Most Expensive
C
Wholesale Diamonds Direct
499471441 · Nov 6
£4,437 GBP
$5,939 USD
View
9 more retailers have this diamond
Prices start from £2,643 GBPSave up to £1,794 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
£2,643 GBP