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Radiant|Lab Grown|IGI

1.81ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG729574225

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

Certificate IGI LG729574225

Diamond specifications and retailer prices

From £1,518 GBP
$2,021 USD
As of October 29, 2026
Save £2,252 GBP (60%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,770 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.81ct lab-grown radiant diamond

This 1.81ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729574225 or 729574225. Listed at 3 retailers as of October 29, 2026, with prices from £1,518 to £3,770, a £2,252 spread on the same certified stone. Do Amore Diamonds lists it at £3,770. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729574225
Dimensions8.64 × 6.12 × 3.98 mm
L/W Ratio1.41
Culet sizeLong
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
8.64 mm6.12 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729574225
Side View
Table 65.0%Crown 42.2°Girdle: MediumPavilion 34.3°Culet: LNGDepth 65.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £3,770 GBP|Low: £406 GBP|High: £3,770 GBP|Avg: £1,599 GBP
Do Amore Diamonds
Retailer 2
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October 18, 2026
Retailer 10£406 GBP
Retailer 9£716 GBP
Retailer 14£725 GBP
Retailer 3£927 GBP
Retailer 12£1,020 GBP
Retailer 13£1,382 GBP
Retailer 7£1,518 GBP
Retailer 6£1,774 GBP
Retailer 11£1,801 GBP
Retailer 8£1,945 GBP
Retailer 2£2,099 GBP
Retailer 5£2,123 GBP
Retailer 4£2,218 GBP
Do Amore Diamonds£3,770 GBP

4 data points across 14 retailers

3 retailers£1,518 GBP to £3,770 GBP

B+
Cheapest Retailer
-
£1,518 GBP
$2,021 USD
Retailer 2
-
£2,099 GBP
$2,795 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Do Amore Diamonds
24-567-0535 · Oct 29
£3,770 GBP
$5,020 USD
View
2 more retailers have this diamond
Prices start from £1,518 GBPSave up to £2,252 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+
1.81ct Radiant
£1,518 GBP