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Round|Lab Grown|IGI

1.21ct E VVS1 Round Lab Grown Diamond

ID • E/VVS1 • IGI LG761554258

Shape and cutting style on the report: Round brilliant

Certificate IGI LG761554258

Diamond specifications and retailer prices

From £158 GBP
$211 USD
As of October 29, 2026
Save £1,472 GBP (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,631 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 LG761554258 or 761554258. Listed at 22 retailers as of October 27, 2026, with prices from £158 to £1,631, a £1,472 spread on the same certified stone. Queensmith lists it at £1,631. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761554258
Dimensions6.87 × 6.93 × 4.17 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.87 mm6.93 mm1.21 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761554258
Side View
Table 57.0%Crown 33.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.4%

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: £362 GBP|Low: £176 GBP|High: £795 GBP|Avg: £388 GBP|+6.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10£176 GBP
Retailer 3£183 GBP
Retailer 12£264 GBP
Retailer 6£337 GBP
Retailer 4£358 GBP
Retailer 5£359 GBP
Retailer 1£362 GBP
Retailer 2£378 GBP
Retailer 7£479 GBP
Retailer 9£507 GBP
Retailer 11£556 GBP
Retailer 8£788 GBP

42 data points across 12 retailers

22 retailers£158 GBP to £1,631 GBP

A
Cheapest Retailer
-
£158 GBP
$211 USD
A
Retailer 2
-
£176 GBP
$235 USD
View
Final sale: no returns
A
Retailer 3
-
£183 GBP
$244 USD
View
A
Retailer 4
-
£196 GBP
$261 USD
View
A
Retailer 5
-
£196 GBP
$261 USD
View
A
Retailer 6
-
£221 GBP
HK$2,300 HKD
View
B+
Retailer 7
-
£264 GBP
$352 USD
View
A
Retailer 8
-
£337 GBP
ZAR 7,250 ZAR
View
B+
Retailer 9
-
£358 GBP
$477 USD
View
B+
Retailer 10
-
£359 GBP
€455 EUR
View
B+
Retailer 11
-
£362 GBP
View
B+
Retailer 12
-
£378 GBP
$504 USD
View
B+
Retailer 13
-
£479 GBP
A$982 AUD
View
B+
Retailer 14
-
£507 GBP
$675 USD
View
Retailer 15
-
£556 GBP
$740 USD
View
Price last confirmed 23 days ago
B
Retailer 16
-
£631 GBP
$840 USD
View
B
Retailer 17
-
£637 GBP
SGD 1,147 SGD
View
B
Retailer 18
-
£671 GBP
$893 USD
View
B
Retailer 19
-
£671 GBP
$893 USD
View
B
Retailer 20
-
£788 GBP
View
B
Retailer 21
-
£922 GBP
$1,228 USD
View
Most Expensive
B
Queensmith
LG761554258 · Oct 27
£1,631 GBP
View
21 more retailers have this diamond
Prices start from £158 GBPSave up to £1,472 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
£158 GBP