Radiant|Lab Grown|IGI

1.21ct D VVS2 Radiant Lab Grown Diamond

VG • D/VVS2 • IGI LG610345811

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG610345811

Diamond specifications and retailer prices

From £153 GBP
$205 USD
As of October 30, 2026
Save £736 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £889 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG610345811 or 610345811. Listed at 16 retailers as of October 25, 2026, with prices from £153 to £889, a £736 spread on the same certified stone. MOH London lists it at £889. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.9°
Pavilion angle29.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG610345811
Dimensions7.18 × 5.11 × 3.53 mm
L/W Ratio1.41
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
7.18 mm5.11 mm1.21 ctD / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG610345811
Side View
Table 63.0%Crown 37.9°Girdle: ThickPavilion 29.9°Culet: NoneDepth 69.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £889 GBP|Low: £147 GBP|High: £899 GBP|Avg: £406 GBP|+2.0%
MOH London
Retailer 2
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October 31, 2026
Retailer 15£153 GBP
Retailer 6£172 GBP
Retailer 13£178 GBP
Retailer 3£190 GBP
Retailer 7£190 GBP
Retailer 9£249 GBP
Retailer 11£321 GBP
Retailer 14£328 GBP
Retailer 2£350 GBP
Retailer 4£372 GBP
Retailer 5£378 GBP
Retailer 16£610 GBP
Retailer 12£613 GBP
Retailer 10£650 GBP
Retailer 8£739 GBP
MOH London£889 GBP

40 data points across 16 retailers

16 retailers£153 GBP to £889 GBP

A
Cheapest Retailer
-
£153 GBP
$205 USD
A
Retailer 2
-
£172 GBP
$230 USD
View
Final sale: no returns
A
Retailer 3
-
£178 GBP
$238 USD
View
A
Retailer 4
-
£190 GBP
$254 USD
View
A
Retailer 5
-
£190 GBP
$254 USD
View
A
Retailer 6
-
£249 GBP
View
Retailer 7
-
£321 GBP
ZAR 6,950 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£328 GBP
$439 USD
View
B+
Retailer 9
-
£350 GBP
View
B+
Retailer 10
-
£372 GBP
$498 USD
View
B+
Retailer 11
-
£378 GBP
$506 USD
View
B
Retailer 12
-
£610 GBP
$818 USD
View
B
Retailer 13
-
£613 GBP
$821 USD
View
B
Retailer 14
-
£650 GBP
$871 USD
View
B
Retailer 15
-
£739 GBP
View
Most Expensive
B
MOH London
LG610345811 · Oct 25
£889 GBP
View
15 more retailers have this diamond
Prices start from £153 GBPSave up to £736 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 Radiant
£153 GBP