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Round|Lab Grown|IGI

1.21ct E VS2 Round Lab Grown Diamond

ID • E/VS2 • IGI LG788619557

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788619557

Diamond specifications and retailer prices

From £140 GBP
$187 USD
As of October 29, 2026
Save £725 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £865 GBP at Reve Diamonds · As of October 28, 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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG788619557 or 788619557. Listed at 20 retailers as of October 28, 2026, with prices from £140 to £865, a £725 spread on the same certified stone. Reve Diamonds lists it at £865. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788619557
Dimensions6.85 × 6.89 × 4.24 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
6.85 mm6.89 mm1.21 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788619557
Side View
Table 55.0%Crown 33.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.7%

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: £314 GBP|Low: £112 GBP|High: £865 GBP|Avg: £348 GBP|+6.1%
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
Retailer 14
Retailer 15
Reve Diamonds
October 29, 2026
Retailer 13£140 GBP
Retailer 4£157 GBP
Retailer 5£163 GBP
Retailer 7£174 GBP
Retailer 15£174 GBP
Retailer 14£234 GBP
Retailer 8£302 GBP
Retailer 1£314 GBP
Retailer 9£322 GBP
Retailer 3£359 GBP
Retailer 10£375 GBP
Retailer 12£445 GBP
Retailer 6£559 GBP
Retailer 2£583 GBP
Retailer 11£815 GBP
Reve Diamonds£865 GBP

45 data points across 16 retailers

20 retailers£140 GBP to £865 GBP

A
Cheapest Retailer
-
£140 GBP
$187 USD
A
Retailer 2
-
£157 GBP
$209 USD
View
Final sale: no returns
A
Retailer 3
-
£163 GBP
$217 USD
View
A
Retailer 4
-
£174 GBP
$232 USD
View
A
Retailer 5
-
£174 GBP
$232 USD
View
A
Retailer 6
-
£192 GBP
HK$2,000 HKD
View
B+
Retailer 7
-
£234 GBP
$312 USD
View
B+
Retailer 8
-
£295 GBP
$393 USD
View
A
Retailer 9
-
£302 GBP
View
B+
Retailer 10
-
£314 GBP
View
B+
Retailer 11
-
£322 GBP
€408 EUR
View
B+
Retailer 12
-
£359 GBP
$478 USD
View
B+
Retailer 13
-
£375 GBP
$500 USD
View
B+
Retailer 14
-
£445 GBP
$592 USD
View
B
Retailer 15
-
£559 GBP
$745 USD
View
B
Retailer 16
-
£567 GBP
SGD 1,021 SGD
View
B
Retailer 17
-
£583 GBP
$777 USD
View
B
Retailer 18
-
£600 GBP
$799 USD
View
B
Retailer 19
-
£815 GBP
View
Most Expensive
B
Reve Diamonds
2C3D051BD · Oct 28
£865 GBP
$1,152 USD
View
19 more retailers have this diamond
Prices start from £140 GBPSave up to £725 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
£140 GBP