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Radiant|Lab Grown|IGI

1.23ct G VVS2 Radiant Lab Grown Diamond

EX • G/VVS2 • IGI LG605342120

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

Certificate IGI LG605342120

Diamond specifications and retailer prices

From £164 GBP
As of November 4, 2026
Save £1,236 GBP (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,400 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG605342120 or 605342120. Listed at 14 retailers as of November 4, 2026, with prices from £164 to £1,400, a £1,236 spread on the same certified stone. Do Amore Diamonds lists it at £1,400. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605342120
Dimensions7.26 × 5.59 × 3.72 mm
L/W Ratio1.30
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.26 mm5.59 mm1.23 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605342120
Side View
Table 65.0%Crown 41.4°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.5%

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: Nov 4
Current: £1,400 GBP|Low: £164 GBP|High: £1,400 GBP|Avg: £513 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 4, 2026
Retailer 13£164 GBP
Retailer 10£181 GBP
Retailer 4£273 GBP
Retailer 12£316 GBP
Retailer 7£344 GBP
Retailer 3£363 GBP
Retailer 2£367 GBP
Retailer 6£488 GBP
Retailer 9£584 GBP
Retailer 11£642 GBP
Retailer 5£769 GBP
Retailer 8£800 GBP
Do Amore Diamonds£1,400 GBP

43 data points across 13 retailers

14 retailers£164 GBP to £1,400 GBP

A
Cheapest Retailer
-
£164 GBP
Final sale: no returns
A
Retailer 2
-
£181 GBP
View
A
Retailer 3
-
£273 GBP
View
A
Retailer 4
-
£316 GBP
View
A
Retailer 5
-
£344 GBP
View
A
Retailer 6
-
£363 GBP
View
A
Retailer 7
-
£367 GBP
View
B+
Retailer 8
-
£488 GBP
View
B+
Retailer 9
-
£530 GBP
View
B
Retailer 10
-
£584 GBP
View
B
Retailer 11
-
£642 GBP
View
B
Retailer 12
-
£769 GBP
View
B
Retailer 13
-
£800 GBP
View
Most Expensive
B
Do Amore Diamonds
27-58DDDFE10 · Nov 4
£1,400 GBP
$1,890 USD
View
13 more retailers have this diamond
Prices start from £164 GBPSave up to £1,236 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
1.23ct Radiant
£164 GBP