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Round|Lab Grown|IGI

1.21ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG706563894

Shape and cutting style on the report: Round brilliant

Certificate IGI LG706563894

Diamond specifications and retailer prices

From £128 GBP
$171 USD
As of October 29, 2026
Save £699 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £827 GBP at Reve Diamonds · As of October 30, 2026
View at Reve 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 LG706563894 or 706563894. Listed at 20 retailers as of October 29, 2026, with prices from £128 to £827, a £699 spread on the same certified stone. Reve Diamonds lists it at £827. 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 angle35.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706563894
Dimensions6.78 × 6.77 × 4.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.78 mm6.77 mm1.21 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706563894
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.7%

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: £267 GBP|Low: £128 GBP|High: £849 GBP|Avg: £369 GBP|-5.6%
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Retailer 20
Reve Diamonds
October 30, 2026
Retailer 2£128 GBP
Retailer 7£144 GBP
Retailer 18£149 GBP
Retailer 9£159 GBP
Retailer 11£159 GBP
Retailer 1£267 GBP
Retailer 16£274 GBP
Retailer 12£283 GBP
Retailer 3£285 GBP
Retailer 20£292 GBP
Retailer 15£316 GBP
Retailer 6£346 GBP
Retailer 4£379 GBP
Retailer 13£380 GBP
Retailer 17£389 GBP
Retailer 5£513 GBP
Retailer 10£536 GBP
Retailer 19£541 GBP
Retailer 8£554 GBP
Retailer 14£750 GBP
Reve Diamonds£827 GBP

37 data points across 21 retailers

20 retailers£128 GBP to £827 GBP

A
Cheapest Retailer
-
£128 GBP
$171 USD
A
Retailer 2
-
£144 GBP
$192 USD
View
Final sale: no returns
A
Retailer 3
-
£149 GBP
$199 USD
View
A
Retailer 4
-
£159 GBP
$212 USD
View
A
Retailer 5
-
£159 GBP
$212 USD
View
A
Retailer 6
-
£267 GBP
View
A
Retailer 7
-
£274 GBP
ZAR 5,890 ZAR
View
A
Retailer 8
-
£283 GBP
View
A
Retailer 9
-
£285 GBP
$379 USD
View
A
Retailer 10
-
£292 GBP
$389 USD
View
B+
Retailer 11
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£316 GBP
€401 EUR
View
B+
Retailer 12
-
£346 GBP
$461 USD
View
B+
Retailer 13
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£380 GBP
A$778 AUD
View
B+
Retailer 14
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£389 GBP
A$796 AUD
View
B+
Retailer 15
-
£513 GBP
$683 USD
View
B
Retailer 16
-
£536 GBP
$714 USD
View
B
Retailer 17
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£541 GBP
$721 USD
View
B
Retailer 18
-
£554 GBP
$737 USD
View
B
Retailer 19
-
£750 GBP
View
Most Expensive
B
Reve Diamonds
A2FB38989 · Oct 30
£827 GBP
$1,102 USD
View
19 more retailers have this diamond
Prices start from £128 GBPSave up to £699 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