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Marquise|Natural|GIA

1.21ct E VS1 Marquise Natural Diamond

VG • E/VS1 • GIA 5242018471

Certificate GIA 5242018471

Diamond specifications and retailer prices

From £4,433 GBP
As of October 29, 2026
Save £1,902 GBP (30%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,335 GBP at The Diamond Guys · As of November 4, 2026
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 E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5242018471. Listed at 12 retailers as of October 29, 2026, with prices from £4,433 to £6,335, a £1,902 spread on the same certified stone. The Diamond Guys lists it at £6,335. 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
E
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle39.42°
OriginNatural
Grading LabGIA
CertificateGIA 5242018471
Dimensions10.36 × 5.59 × 3.50 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.36 mm5.59 mm1.21 ctE / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242018471
Side View
Table 56.0%Crown 39.2°Girdle: STK-VTKPavilion 39.42°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £4,947 GBP|Low: £4,433 GBP|High: £7,363 GBP|Avg: £6,011 GBP|-6.4%
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
November 3, 2026
Retailer 9£4,433 GBP
Retailer 10£4,733 GBP
Retailer 12£4,823 GBP
Retailer 1£4,947 GBP
Retailer 8£5,068 GBP
Retailer 7£5,079 GBP
Retailer 6£5,223 GBP
Retailer 13£5,915 GBP
Retailer 2£6,000 GBP
Retailer 11£6,209 GBP
Retailer 3£6,399 GBP
Retailer 5£7,174 GBP
Retailer 4£7,363 GBP

45 data points across 13 retailers

12 retailers£4,433 GBP to £6,335 GBP

A
Cheapest Retailer
-
£4,433 GBP
A
Retailer 2
-
£4,492 GBP
View
A
Retailer 3
-
£4,733 GBP
View
A
Retailer 4
-
£4,823 GBP
View
A
Retailer 5
-
£4,947 GBP
View
B+
Retailer 6
-
£5,068 GBP
View
B+
Retailer 7
-
£5,079 GBP
View
A
Retailer 8
-
£5,223 GBP
View
B+
Retailer 9
-
£5,915 GBP
View
Retailer 10
-
£6,000 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£6,209 GBP
View
Most Expensive
B
The Diamond Guys
1967582799 · Nov 4
£6,335 GBP
$8,552 USD
View
11 more retailers have this diamond
Prices start from £4,433 GBPSave up to £1,902 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.

A
1.21ct Marquise
£4,433 GBP