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Round|Lab Grown|IGI

1.21ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG844676742

Shape and cutting style on the report: Round brilliant

Certificate IGI LG844676742

Diamond specifications and retailer prices

From £128 GBP
$171 USD
As of October 29, 2026
Save £845 GBP (87%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £973 GBP at Yadav Diamonds · As of October 29, 2026
View at Yadav Diamonds

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844676742 or 844676742. Listed at 23 retailers as of October 29, 2026, with prices from £128 to £973, a £845 spread on the same certified stone. Yadav Diamonds lists it at £973. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844676742
Dimensions6.75 × 6.77 × 4.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.75 mm6.77 mm1.21 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844676742
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £266 GBP|Low: £127 GBP|High: £973 GBP|Avg: £385 GBP|+0.5%
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Retailer 22
Yadav Diamonds
October 30, 2026
Retailer 3£128 GBP
Retailer 6£143 GBP
Retailer 5£149 GBP
Retailer 2£158 GBP
Retailer 20£158 GBP
Retailer 15£183 GBP
Retailer 11£214 GBP
Retailer 1£266 GBP
Retailer 16£270 GBP
Retailer 18£273 GBP
Retailer 12£282 GBP
Retailer 4£292 GBP
Retailer 22£345 GBP
Retailer 9£379 GBP
Retailer 19£387 GBP
Retailer 21£511 GBP
Retailer 13£528 GBP
Retailer 14£533 GBP
Retailer 7£539 GBP
Retailer 8£551 GBP
Retailer 17£747 GBP
Retailer 10£826 GBP
Yadav Diamonds£973 GBP

16 data points across 23 retailers

23 retailers£128 GBP to £973 GBP

A
Cheapest Retailer
-
£128 GBP
$171 USD
A
Retailer 2
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£143 GBP
$190 USD
View
Final sale: no returns
A
Retailer 3
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£149 GBP
$198 USD
View
A
Retailer 4
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£158 GBP
$211 USD
View
A
Retailer 5
-
£158 GBP
$211 USD
View
A
Retailer 6
-
£183 GBP
HK$1,900 HKD
View
B+
Retailer 7
-
£214 GBP
$285 USD
View
A
Retailer 8
-
£266 GBP
View
A
Retailer 9
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£270 GBP
€342 EUR
View
A
Retailer 10
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£273 GBP
ZAR 5,866 ZAR
View
A
Retailer 11
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£282 GBP
View
A
Retailer 12
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£292 GBP
$389 USD
View
B+
Retailer 13
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£345 GBP
$460 USD
View
Retailer 14
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£379 GBP
$505 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
£387 GBP
A$793 AUD
View
B+
Retailer 16
-
£511 GBP
$680 USD
View
B
Retailer 17
-
£528 GBP
SGD 951 SGD
View
B
Retailer 18
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£533 GBP
$710 USD
View
B
Retailer 19
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£539 GBP
$718 USD
View
B
Retailer 20
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£551 GBP
$734 USD
View
B
Retailer 21
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£747 GBP
View
B
Retailer 22
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£826 GBP
$1,100 USD
View
Most Expensive
B
Yadav Diamonds
13331952 · Oct 29
£973 GBP
$1,296 USD
View
22 more retailers have this diamond
Prices start from £128 GBPSave up to £845 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 Round
£128 GBP