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Radiant|Lab Grown|IGI

1.23ct G VVS2 Radiant Lab Grown Diamond

EX • G/VVS2 • IGI LG617406372

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

Certificate IGI LG617406372

Diamond specifications and retailer prices

From £510 GBP
As of October 28, 2026
Save £601 GBP (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,111 GBP at Do Amore Diamonds · As of October 29, 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 LG617406372 or 617406372. Listed at 8 retailers as of October 28, 2026, with prices from £510 to £1,111, a £601 spread on the same certified stone. Do Amore Diamonds lists it at £1,111. 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 angle46.1°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617406372
Dimensions7.55 × 5.28 × 3.59 mm
L/W Ratio1.43
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
7.55 mm5.28 mm1.23 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617406372
Side View
Table 66.0%Crown 46.1°Girdle: THN-MEDPavilion 34.9°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £1,111 GBP|Low: £97 GBP|High: £1,163 GBP|Avg: £481 GBP|-4.5%
Do Amore Diamonds
Retailer 2
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October 26, 2026
Retailer 12£116 GBP
Retailer 15£133 GBP
Retailer 10£135 GBP
Retailer 14£261 GBP
Retailer 16£288 GBP
Retailer 6£303 GBP
Retailer 4£327 GBP
Retailer 5£381 GBP
Retailer 2£387 GBP
Retailer 11£488 GBP
Retailer 13£510 GBP
Retailer 7£521 GBP
Retailer 3£671 GBP
Retailer 9£743 GBP
Retailer 8£880 GBP
Do Amore Diamonds£1,111 GBP

20 data points across 16 retailers

8 retailers£510 GBP to £1,111 GBP

Retailer 1
-
£116 GBP
Price last confirmed 8 days ago
Retailer 2
-
£135 GBP
View
Price last confirmed 7 days ago
Retailer 3
-
£261 GBP
View
Price last confirmed 7 days ago
Retailer 4
-
£387 GBP
View
Price last confirmed 9 days ago
Retailer 5
-
£488 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£510 GBP
View
Retailer 7
-
£743 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
27-9B8076D27 · Oct 29
£1,111 GBP
$1,500 USD
View
7 more retailers have this diamond
Prices start from £510 GBPSave up to £601 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.

B+
1.23ct Radiant
£510 GBP