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Radiant|Lab Grown|IGI

1.36ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816615709

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

Certificate IGI LG816615709

Diamond specifications and retailer prices

From £259 GBP
$347 USD
As of October 30, 2026
Save £1,734 GBP (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,284 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.36ct lab-grown radiant diamond

This 1.36ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615709 or 816615709. Listed at 18 retailers as of October 30, 2026, with a 669% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.36
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615709
Dimensions7.79 × 5.42 × 3.76 mm
L/W Ratio1.44
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
7.79 mm5.42 mm1.36 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615709
Side View
Table 63.0%Crown 45.3°Girdle: Slightly ThickPavilion 36.6°Culet: NoneDepth 69.4%

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: £2,284 GBP|Low: £243 GBP|High: £3,112 GBP|Avg: £992 GBP|-1.4%
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
October 30, 2026
Retailer 11£259 GBP
Retailer 7£372 GBP
Retailer 3£388 GBP
Retailer 13£443 GBP
Retailer 10£464 GBP
Retailer 8£476 GBP
Retailer 4£501 GBP
Retailer 15£716 GBP
Retailer 12£829 GBP
Retailer 14£903 GBP
Retailer 6£994 GBP
Retailer 9£1,087 GBP
Retailer 5£1,124 GBP
Retailer 2£1,993 GBP
Rare Carat£2,284 GBP

29 data points across 15 retailers

18 retailers£259 GBP to £1,993 GBP

A
Cheapest Retailer
-
£259 GBP
$347 USD
Final sale: no returns
Retailer 2
-
£288 GBP
$386 USD
View
Price last confirmed 28 days ago
Retailer 3
-
£336 GBP
$450 USD
View
Price last confirmed 33 days ago
Retailer 4
-
£372 GBP
$499 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£388 GBP
$520 USD
View
A
Retailer 6
-
£443 GBP
$593 USD
View
A
Retailer 7
-
£464 GBP
ZAR 10,034 ZAR
View
A
Retailer 8
-
£476 GBP
View
Retailer 9
-
£501 GBP
€639 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
£716 GBP
$959 USD
View
B+
Retailer 11
-
£829 GBP
$1,111 USD
View
B+
Retailer 12
-
£903 GBP
$1,211 USD
View
B+
Retailer 13
-
£994 GBP
SGD 1,799 SGD
View
B
Retailer 14
-
£1,087 GBP
View
B
Retailer 15
-
£1,124 GBP
$1,506 USD
View
Retailer 16
-
£1,196 GBP
$1,603 USD
View
Price last confirmed 30 days ago
B
Retailer 17
-
£1,993 GBP
$2,670 USD
View
Most Expensive
Rare Carat
PD-229992 · Oct 21
£2,284 GBP
$3,060 USD
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from £259 GBPSave up to £1,734 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
1.36ct Radiant
£259 GBP