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Radiant|Lab Grown|IGI

1.23ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG743523333

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

Certificate IGI LG743523333

Diamond specifications and retailer prices

From £167 GBP
$224 USD
As of October 30, 2026
Save £1,437 GBP (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,605 GBP at Do Amore Diamonds · As of October 31, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743523333 or 743523333. Listed at 21 retailers as of October 30, 2026, with prices from £167 to £1,605, a £1,437 spread on the same certified stone. Do Amore Diamonds lists it at £1,605. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743523333
Dimensions7.68 × 5.25 × 3.52 mm
L/W Ratio1.46
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
7.68 mm5.25 mm1.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743523333
Side View
Table 63.0%Crown 42.1°Girdle: MED-STKPavilion 33.2°Culet: NoneDepth 67.0%

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: £431 GBP|Low: £160 GBP|High: £1,112 GBP|Avg: £508 GBP|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
November 1, 2026
Retailer 15£167 GBP
Retailer 7£187 GBP
Retailer 3£194 GBP
Retailer 4£207 GBP
Retailer 16£207 GBP
Retailer 2£353 GBP
Retailer 6£388 GBP
Retailer 10£393 GBP
Retailer 1£431 GBP
Retailer 9£468 GBP
Retailer 11£562 GBP
Retailer 14£669 GBP
Retailer 17£735 GBP
Retailer 8£863 GBP
Retailer 5£890 GBP
Retailer 13£921 GBP
Retailer 12£1,090 GBP

43 data points across 17 retailers

21 retailers£167 GBP to £1,605 GBP

A
Cheapest Retailer
-
£167 GBP
$224 USD
A
Retailer 2
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£187 GBP
$251 USD
View
Final sale: no returns
A
Retailer 3
-
£194 GBP
$260 USD
View
A
Retailer 4
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£207 GBP
$278 USD
View
A
Retailer 5
-
£207 GBP
$278 USD
View
A
Retailer 6
-
£306 GBP
HK$3,200 HKD
View
A
Retailer 7
-
£353 GBP
$473 USD
View
A
Retailer 8
-
£388 GBP
$520 USD
View
A
Retailer 9
-
£393 GBP
ZAR 8,505 ZAR
View
A
Retailer 10
-
£431 GBP
View
A
Retailer 11
-
£468 GBP
$627 USD
View
Retailer 12
-
£562 GBP
A$1,158 AUD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
£669 GBP
$896 USD
View
B+
Retailer 14
-
£735 GBP
$985 USD
View
B+
Retailer 15
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£863 GBP
$1,156 USD
View
B+
Retailer 16
-
£887 GBP
View
B+
Retailer 17
-
£890 GBP
SGD 1,611 SGD
View
Retailer 18
-
£921 GBP
View
Price last confirmed 11 days ago
B
Retailer 19
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£947 GBP
$1,269 USD
View
Retailer 20
-
£1,090 GBP
$1,460 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
27-3C547B298 · Oct 31
£1,605 GBP
$2,150 USD
View
20 more retailers have this diamond
Prices start from £167 GBPSave up to £1,437 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
£167 GBP