Radiant|Lab Grown|IGI

1.23ct D VS1 Radiant Lab Grown Diamond

GD • D/VS1 • IGI LG693528232

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

Certificate IGI LG693528232

Diamond specifications and retailer prices

From £193 GBP
$259 USD
As of October 30, 2026
Save £722 GBP (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £916 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG693528232 or 693528232. Listed at 14 retailers as of October 30, 2026, with prices from £193 to £916, a £722 spread on the same certified stone. Reve Diamonds lists it at £916. 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

1.23
Carat
D
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG693528232
Dimensions7.98 × 5.52 × 3.45 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.98 mm5.52 mm1.23 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG693528232
Side View
Table 65.0%Crown 35.3°Girdle: THN-MEDPavilion 34.2°Culet: NoneDepth 62.5%

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: Oct 30
Current: £405 GBP|Low: £137 GBP|High: £916 GBP|Avg: £495 GBP|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Reve Diamonds
October 30, 2026
Retailer 3£193 GBP
Retailer 8£364 GBP
Retailer 9£366 GBP
Retailer 4£369 GBP
Retailer 1£405 GBP
Retailer 5£524 GBP
Retailer 6£598 GBP
Retailer 7£693 GBP
Retailer 2£866 GBP
Reve Diamonds£916 GBP

37 data points across 10 retailers

14 retailers£193 GBP to £916 GBP

A
Cheapest Retailer
-
£193 GBP
$259 USD
Final sale: no returns
Retailer 2
-
£201 GBP
$269 USD
View
Price last confirmed 33 days ago
Retailer 3
-
£215 GBP
$288 USD
View
Price last confirmed 22 days ago
Retailer 4
-
£215 GBP
$288 USD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
£364 GBP
$488 USD
View
B+
Retailer 6
-
£366 GBP
$490 USD
View
B+
Retailer 7
-
£369 GBP
ZAR 7,994 ZAR
View
B+
Retailer 8
-
£405 GBP
View
B
Retailer 9
-
£524 GBP
A$1,081 AUD
View
B
Retailer 10
-
£598 GBP
A$1,232 AUD
View
Retailer 11
-
£691 GBP
$926 USD
View
Price last confirmed 30 days ago
B
Retailer 12
-
£693 GBP
$929 USD
View
B
Retailer 13
-
£866 GBP
View
Most Expensive
B
Reve Diamonds
E383C9393 · Oct 30
£916 GBP
$1,227 USD
View
13 more retailers have this diamond
Prices start from £193 GBPSave up to £722 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
£193 GBP