Radiant|Lab Grown|IGI

0.37ct E IF Radiant Lab Grown Diamond

GD • E/IF • IGI LG686508950

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

Certificate IGI LG686508950

Diamond specifications and retailer prices

From £81 GBP
$109 USD
As of October 30, 2026
Save £286 GBP (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £808 GBP at Flawless Fine Jewelry · As of October 23, 2026
View at Flawless Fine Jewelry

About this 0.37ct lab-grown radiant diamond

This 0.37ct lab-grown radiant sits in the sub-half-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG686508950 or 686508950. Listed at 19 retailers as of October 30, 2026, with a 352% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.37
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle45.7°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG686508950
Dimensions5.17 × 3.52 × 2.49 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.17 mm3.52 mm0.37 ctE / IF
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG686508950
Side View
Table 72.0%Crown 45.7°Girdle: Slightly ThickPavilion 37.6°Culet: NoneDepth 70.7%

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: £808 GBP|Low: £81 GBP|High: £808 GBP|Avg: £307 GBP
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 18
October 31, 2026
Retailer 15£81 GBP
Retailer 2£95 GBP
Retailer 3£107 GBP
Retailer 12£117 GBP
Retailer 10£154 GBP
Retailer 14£184 GBP
Retailer 7£187 GBP
Retailer 11£200 GBP
Retailer 16£200 GBP
Retailer 8£259 GBP
Retailer 17£259 GBP
Retailer 5£275 GBP
Retailer 4£299 GBP
Retailer 13£324 GBP
Retailer 18£368 GBP
Retailer 9£497 GBP
Retailer 6£727 GBP
Flawless Fine Jewelry£808 GBP

42 data points across 18 retailers

19 retailers£81 GBP to £368 GBP

A
Cheapest Retailer
-
£81 GBP
$109 USD
A
Retailer 2
-
£95 GBP
$127 USD
View
A
Retailer 3
-
£107 GBP
$144 USD
View
B+
Retailer 4
-
£117 GBP
$157 USD
View
Final sale: no returns
Retailer 5
-
£154 GBP
$207 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
£184 GBP
$246 USD
View
Retailer 7
-
£187 GBP
$250 USD
View
Price last confirmed 12 days ago
Retailer 8
-
£187 GBP
$250 USD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
£200 GBP
View
B+
Retailer 10
-
£200 GBP
$268 USD
View
Retailer 11
-
£259 GBP
€330 EUR
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£259 GBP
View
Retailer 13
-
£275 GBP
ZAR 5,958 ZAR
View
Price last confirmed 8 days ago
B
Retailer 14
-
£299 GBP
$400 USD
View
B
Retailer 15
-
£324 GBP
$434 USD
View
B
Retailer 16
-
£368 GBP
$493 USD
View
Retailer 17
-
£497 GBP
$666 USD
View
Price last confirmed 9 days ago
Retailer 18
-
£727 GBP
View
Price last confirmed 10 days ago
Most Expensive
Flawless Fine Jewelry
5481662A7 · Oct 23
£808 GBP
View
Price last confirmed 7 days ago
18 more retailers have this diamond
Prices start from £81 GBPSave up to £286 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
0.37ct Radiant
£81 GBP