Radiant|Lab Grown|IGI

0.99ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG815698160

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

Certificate IGI LG815698160

Diamond specifications and retailer prices

From £289 GBP
$387 USD
As of October 30, 2026
Save £1,118 GBP (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,440 GBP at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 0.99ct lab-grown radiant diamond

This 0.99ct lab-grown radiant sits in the just-under-one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815698160 or 815698160. Listed at 20 retailers as of October 29, 2026, with a 387% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.99
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG815698160
Dimensions7.06 × 4.88 × 3.36 mm
L/W Ratio1.45
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
7.06 mm4.88 mm0.99 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815698160
Side View
Table 63.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,105 GBP|Low: £289 GBP|High: £2,672 GBP|Avg: £1,057 GBP|-22.9%
Brilliant Earth
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 17£289 GBP
Retailer 8£323 GBP
Retailer 3£358 GBP
Retailer 6£500 GBP
Retailer 16£569 GBP
Retailer 13£592 GBP
Retailer 11£648 GBP
Retailer 2£649 GBP
Retailer 14£851 GBP
Retailer 9£987 GBP
Retailer 15£1,005 GBP
Retailer 12£1,046 GBP
Brilliant Earth£1,105 GBP
Retailer 5£1,151 GBP
Retailer 7£1,179 GBP
Retailer 4£1,364 GBP
Retailer 10£1,407 GBP

43 data points across 17 retailers

20 retailers£289 GBP to £1,407 GBP

A
Cheapest Retailer
-
£289 GBP
$387 USD
A
Retailer 2
-
£323 GBP
$433 USD
View
Final sale: no returns
A
Retailer 3
-
£323 GBP
$433 USD
View
A
Retailer 4
-
£358 GBP
$480 USD
View
A
Retailer 5
-
£358 GBP
$480 USD
View
A
Retailer 6
-
£500 GBP
$670 USD
View
A
Retailer 7
-
£569 GBP
$762 USD
View
Retailer 8
-
£592 GBP
€756 EUR
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£648 GBP
ZAR 14,019 ZAR
View
B+
Retailer 10
-
£649 GBP
View
Retailer 11
-
£851 GBP
$1,140 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
£987 GBP
SGD 1,788 SGD
View
B
Retailer 13
-
£1,005 GBP
$1,346 USD
View
B
Retailer 14
-
£1,046 GBP
View
B
Retailer 15
-
£1,105 GBP
$1,480 USD
View
B+
Retailer 16
-
£1,151 GBP
$1,542 USD
View
B
Retailer 17
-
£1,179 GBP
$1,580 USD
View
B
Retailer 18
-
£1,364 GBP
$1,827 USD
View
B
Retailer 19
-
£1,407 GBP
View
Most Expensive
Brilliant Earth
20801913A · Sep 28
£1,440 GBP
$1,930 USD
View
Price last confirmed 31 days ago
19 more retailers have this diamond
Prices start from £289 GBPSave up to £1,118 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
0.99ct Radiant
£289 GBP