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Radiant|Lab Grown|IGI

1.23ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG669419524

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

Certificate IGI LG669419524

Diamond specifications and retailer prices

From £133 GBP
$177 USD
As of October 27, 2026
Save £1,345 GBP (91%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: £1,478 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG669419524 or 669419524. Listed at 29 retailers as of October 27, 2026, with prices from £133 to £1,478, a £1,345 spread on the same certified stone. Diamond Quarter lists it at £1,478. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669419524
Dimensions7.88 × 5.29 × 3.50 mm
L/W Ratio1.49
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
7.88 mm5.29 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669419524
Side View
Table 63.0%Crown 42.3°Girdle: MediumPavilion 33.7°Culet: NoneDepth 66.2%

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 27
Current: £331 GBP|Low: £133 GBP|High: £1,277 GBP|Avg: £516 GBP|+4.3%
Retailer 1
Retailer 2
Retailer 3
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Retailer 20
October 29, 2026
Retailer 3£133 GBP
Retailer 16£149 GBP
Retailer 5£257 GBP
Retailer 7£269 GBP
Retailer 18£309 GBP
Retailer 14£312 GBP
Retailer 2£330 GBP
Retailer 1£331 GBP
Retailer 10£351 GBP
Retailer 11£386 GBP
Retailer 15£443 GBP
Retailer 19£559 GBP
Retailer 4£655 GBP
Retailer 17£657 GBP
Retailer 20£714 GBP
Retailer 13£773 GBP
Retailer 6£834 GBP
Retailer 9£842 GBP
Retailer 12£854 GBP
Retailer 8£1,277 GBP

42 data points across 20 retailers

29 retailers£133 GBP to £1,478 GBP

A
Cheapest Retailer
-
£133 GBP
$177 USD
Retailer 2
-
£133 GBP
$177 USD
View
Price last confirmed 21 days ago
Retailer 3
-
£133 GBP
$177 USD
View
Price last confirmed 29 days ago
A
Retailer 4
-
£149 GBP
$199 USD
View
Final sale: no returns
Retailer 5
-
£154 GBP
$205 USD
View
Price last confirmed 32 days ago
Retailer 6
-
£162 GBP
$216 USD
View
Price last confirmed 31 days ago
Retailer 7
-
£164 GBP
$219 USD
View
Price last confirmed 26 days ago
B+
Retailer 8
-
£257 GBP
$342 USD
View
A
Retailer 9
-
£269 GBP
HK$2,800 HKD
View
A
Retailer 10
-
£309 GBP
€392 EUR
View
A
Retailer 11
-
£312 GBP
ZAR 6,713 ZAR
View
A
Retailer 12
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£330 GBP
$440 USD
View
A
Retailer 13
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£331 GBP
View
A
Retailer 14
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£351 GBP
$468 USD
View
A
Retailer 15
-
£386 GBP
$514 USD
View
A
Retailer 16
-
£443 GBP
A$908 AUD
View
B+
Retailer 17
-
£559 GBP
$744 USD
View
B+
Retailer 18
-
£584 GBP
$778 USD
View
Retailer 19
-
£584 GBP
$778 USD
View
Price last confirmed 19 days ago
Retailer 20
-
£584 GBP
$778 USD
View
Price last confirmed 29 days ago
Retailer 21
-
£655 GBP
A$1,342 AUD
View
Price last confirmed 21 days ago
Retailer 22
-
£657 GBP
$875 USD
View
Price last confirmed 8 days ago
B
Retailer 23
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£714 GBP
$951 USD
View
B
Retailer 24
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£773 GBP
SGD 1,391 SGD
View
B
Retailer 25
-
£834 GBP
$1,110 USD
View
B
Retailer 26
-
£842 GBP
$1,121 USD
View
B+
Retailer 27
-
£854 GBP
View
B
Retailer 28
-
£1,277 GBP
$1,700 USD
View
Most Expensive
B
Diamond Quarter
1.23VVS1ELG24D3FAN · Oct 29
£1,478 GBP
View
28 more retailers have this diamond
Prices start from £133 GBPSave up to £1,345 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
£133 GBP