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Marquise|Natural|GIA

1.21ct I VS2 Marquise Natural Diamond

VG • I/VS2 • GIA 1553631937

Certificate GIA 1553631937

Diamond specifications and retailer prices

From £3,943 GBP
$5,278 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £3,943 GBP at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553631937. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
I
Colour
VS2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.78°
Pavilion angle39.67°
OriginNatural
Grading LabGIA
CertificateGIA 1553631937
Dimensions10.08 × 5.44 × 3.58 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.08 mm5.44 mm1.21 ctI / VS2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553631937
Side View
Table 57.0%Crown 40.78°Girdle: THK-VTKPavilion 39.67°Culet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £3,556 GBP|Low: £2,362 GBP|High: £6,108 GBP|Avg: £4,182 GBP|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
August 20, 2026
Retailer 11£2,362 GBP
Retailer 6£3,226 GBP
Retailer 8£3,307 GBP
Retailer 2£3,463 GBP
Retailer 9£3,496 GBP
Retailer 1£3,556 GBP
The Diamond Guys£3,943 GBP
Retailer 7£4,032 GBP
Retailer 12£4,084 GBP
Retailer 10£4,110 GBP
Retailer 3£4,691 GBP
Retailer 5£5,295 GBP
Retailer 4£6,108 GBP

23 data points across 13 retailers

1 retailer

B
The Diamond Guys
1964688615 · Nov 6
£3,943 GBP
$5,278 USD
View

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
£3,943 GBP