Radiant|Lab Grown|IGI

1.88ct E FL Radiant Lab Grown Diamond

VG • E/FL • IGI LG818654268

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

Certificate IGI LG818654268

Diamond specifications and retailer prices

From £499 GBP
$669 USD
As of October 30, 2026
Save £2,591 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,407 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.88ct lab-grown radiant diamond

This 1.88ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818654268 or 818654268. Listed at 21 retailers as of October 30, 2026, with a 519% 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

1.88
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654268
Dimensions8.49 × 6.02 × 4.26 mm
L/W Ratio1.41
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
8.49 mm6.02 mm1.88 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654268
Side View
Table 62.0%Crown 43.5°Girdle: Slightly ThickPavilion 37.3°Culet: NoneDepth 70.8%

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: £3,407 GBP|Low: £499 GBP|High: £4,060 GBP|Avg: £1,675 GBP|-2.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 7£499 GBP
Retailer 13£638 GBP
Retailer 4£721 GBP
Retailer 15£835 GBP
Retailer 5£849 GBP
Retailer 11£865 GBP
Retailer 12£950 GBP
Retailer 17£1,196 GBP
Retailer 3£1,203 GBP
Retailer 14£1,604 GBP
Retailer 9£1,740 GBP
Retailer 6£1,788 GBP
Retailer 2£1,934 GBP
Retailer 16£2,413 GBP
Retailer 8£2,432 GBP
Retailer 10£3,090 GBP
Rare Carat£3,407 GBP

35 data points across 17 retailers

21 retailers£499 GBP to £3,090 GBP

A
Cheapest Retailer
-
£499 GBP
$669 USD
Final sale: no returns
Retailer 2
-
£508 GBP
$681 USD
View
Price last confirmed 29 days ago
Retailer 3
-
£576 GBP
$772 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£590 GBP
$790 USD
View
Price last confirmed 23 days ago
A
Retailer 5
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£638 GBP
$855 USD
View
A
Retailer 6
-
£721 GBP
$966 USD
View
Retailer 7
-
£835 GBP
€1,065 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
£849 GBP
$1,137 USD
View
A
Retailer 9
-
£865 GBP
View
B+
Retailer 10
-
£950 GBP
ZAR 20,566 ZAR
View
B+
Retailer 11
-
£1,196 GBP
$1,602 USD
View
B+
Retailer 12
-
£1,203 GBP
$1,612 USD
View
B
Retailer 13
-
£1,604 GBP
View
Retailer 14
-
£1,657 GBP
$2,220 USD
View
Price last confirmed 24 days ago
B
Retailer 15
-
£1,740 GBP
SGD 3,151 SGD
View
B
Retailer 16
-
£1,788 GBP
$2,396 USD
View
B
Retailer 17
-
£1,934 GBP
$2,592 USD
View
B
Retailer 18
-
£2,413 GBP
View
B
Retailer 19
-
£2,432 GBP
$3,258 USD
View
B
Retailer 20
-
£3,090 GBP
$4,140 USD
View
Most Expensive
Rare Carat
PD-237863 · Oct 21
£3,407 GBP
$4,565 USD
View
Price last confirmed 10 days ago
20 more retailers have this diamond
Prices start from £499 GBPSave up to £2,591 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
1.88ct Radiant
£499 GBP