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Radiant|Lab Grown|IGI

1.83ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG641411238

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

Certificate IGI LG641411238

Diamond specifications and retailer prices

From £2,959 GBP
$3,940 USD
As of October 29, 2026
Save £353 GBP (11%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,311 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.83ct lab-grown radiant diamond

This 1.83ct 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 LG641411238 or 641411238. Listed at 2 retailers as of October 29, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641411238
Dimensions8.52 × 6.18 × 4.13 mm
L/W Ratio1.38
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
8.52 mm6.18 mm1.83 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641411238
Side View
Table 63.0%Crown 34.9°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 66.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £2,959 GBP|Low: £586 GBP|High: £5,700 GBP|Avg: £2,319 GBP|-12.4%
Retailer 1
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April 14, 2026
Retailer 13£586 GBP
Retailer 15£631 GBP
Retailer 10£789 GBP
Retailer 9£815 GBP
Retailer 12£1,064 GBP
Retailer 8£1,117 GBP
Retailer 4£1,168 GBP
Retailer 2£1,444 GBP
Retailer 11£1,599 GBP
Retailer 3£2,040 GBP
Retailer 5£2,353 GBP
Retailer 1£2,959 GBP
Retailer 14£3,011 GBP
Retailer 6£3,681 GBP
Retailer 7£4,355 GBP

50 data points across 15 retailers

2 retailers£2,959 GBP to £3,311 GBP

B
Cheapest Retailer
-
£2,959 GBP
$3,940 USD
Most Expensive
B
Diamond Quarter
1.83IFELG386AC2N · Oct 29
£3,311 GBP
View
1 more retailer has this diamond
Prices start from £2,959 GBPSave up to £353 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
1.83ct Radiant
£2,959 GBP