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Round|Lab Grown|IGI

1.21ct E VVS1 Round Lab Grown Diamond

EX • E/VVS1 • IGI LG833670975

Shape and cutting style on the report: Round brilliant

Certificate IGI LG833670975

Diamond specifications and retailer prices

From £143 GBP
$191 USD
As of October 29, 2026
Save £1,106 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,250 GBP at Yadav Diamonds · As of October 30, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG833670975 or 833670975. Listed at 22 retailers as of October 29, 2026, with prices from £143 to £1,250, a £1,106 spread on the same certified stone. Yadav Diamonds lists it at £1,250. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833670975
Dimensions6.88 × 6.90 × 4.19 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
6.88 mm6.90 mm1.21 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833670975
Side View
Table 58.0%Crown 32.3°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
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: £297 GBP|Low: £143 GBP|High: £1,250 GBP|Avg: £432 GBP|-2.5%
Retailer 1
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Retailer 20
Yadav Diamonds
October 30, 2026
Retailer 11£143 GBP
Retailer 5£160 GBP
Retailer 19£166 GBP
Retailer 4£177 GBP
Retailer 18£177 GBP
Retailer 9£240 GBP
Retailer 1£297 GBP
Retailer 15£297 GBP
Retailer 16£305 GBP
Retailer 12£322 GBP
Retailer 3£353 GBP
Retailer 2£362 GBP
Retailer 17£433 GBP
Retailer 6£571 GBP
Retailer 20£572 GBP
Retailer 8£590 GBP
Retailer 10£609 GBP
Retailer 13£611 GBP
Retailer 14£834 GBP
Retailer 7£874 GBP
Yadav Diamonds£1,250 GBP

24 data points across 21 retailers

22 retailers£143 GBP to £1,250 GBP

A
Cheapest Retailer
-
£143 GBP
$191 USD
A
Retailer 2
-
£160 GBP
$213 USD
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
$221 USD
View
A
Retailer 4
-
£177 GBP
$236 USD
View
A
Retailer 5
-
£177 GBP
$236 USD
View
A
Retailer 6
-
£202 GBP
HK$2,100 HKD
View
B+
Retailer 7
-
£240 GBP
$320 USD
View
A
Retailer 8
-
£297 GBP
View
A
Retailer 9
-
£297 GBP
€377 EUR
View
A
Retailer 10
-
£305 GBP
ZAR 6,556 ZAR
View
B+
Retailer 11
-
£322 GBP
View
B+
Retailer 12
-
£353 GBP
$470 USD
View
B+
Retailer 13
-
£362 GBP
$482 USD
View
B+
Retailer 14
-
£433 GBP
A$887 AUD
View
B+
Retailer 15
-
£571 GBP
$760 USD
View
B
Retailer 16
-
£572 GBP
$762 USD
View
B+
Retailer 17
-
£590 GBP
SGD 1,061 SGD
View
B
Retailer 18
-
£609 GBP
$811 USD
View
B+
Retailer 19
-
£611 GBP
$814 USD
View
B
Retailer 20
-
£834 GBP
View
B
Retailer 21
-
£874 GBP
$1,164 USD
View
Most Expensive
B
Yadav Diamonds
13337068 · Oct 30
£1,250 GBP
$1,664 USD
View
21 more retailers have this diamond
Prices start from £143 GBPSave up to £1,106 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
£143 GBP