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Radiant|Lab Grown|IGI

1.30ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG780665761

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

Certificate IGI LG780665761

Diamond specifications and retailer prices

From £182 GBP
$244 USD
As of November 2, 2026
Save £1,562 GBP (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,202 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.3ct lab-grown radiant diamond

This 1.3ct 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 LG780665761 or 780665761. Listed at 18 retailers as of November 2, 2026, with a 859% 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

1.30
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665761
Dimensions7.75 × 5.53 × 3.69 mm
L/W Ratio1.40
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
7.75 mm5.53 mm1.30 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665761
Side View
Table 64.0%Crown 39.9°Girdle: MediumPavilion 35.8°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 2
Current: £2,202 GBP|Low: £182 GBP|High: £2,951 GBP|Avg: £943 GBP|+14.1%
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
November 2, 2026
Retailer 8£182 GBP
Retailer 5£282 GBP
Retailer 9£338 GBP
Retailer 12£379 GBP
Retailer 3£387 GBP
Retailer 6£427 GBP
Retailer 4£520 GBP
Retailer 11£727 GBP
Retailer 13£733 GBP
Retailer 2£996 GBP
Retailer 7£1,744 GBP
Retailer 10£1,744 GBP
Rare Carat£2,202 GBP

30 data points across 13 retailers

18 retailers£182 GBP to £1,744 GBP

A+
Cheapest Retailer
-
£182 GBP
$244 USD
Retailer 2
-
£250 GBP
$335 USD
View
Price last confirmed 34 days ago
A
Retailer 3
-
£282 GBP
$378 USD
View
Final sale: no returns
Retailer 4
-
£289 GBP
$388 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
£338 GBP
$454 USD
View
A
Retailer 6
-
£379 GBP
$508 USD
View
Retailer 7
-
£387 GBP
$520 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
£427 GBP
€546 EUR
View
A
Retailer 9
-
£520 GBP
$698 USD
View
B+
Retailer 10
-
£727 GBP
$975 USD
View
B+
Retailer 11
-
£733 GBP
$983 USD
View
B+
Retailer 12
-
£996 GBP
View
Retailer 13
-
£1,097 GBP
$1,472 USD
View
Price last confirmed 33 days ago
B
Retailer 14
-
£1,744 GBP
$2,340 USD
View
B
Retailer 15
-
£1,744 GBP
$2,340 USD
View
Retailer 16
-
£2,113 GBP
$2,836 USD
View
Price last confirmed 85 days ago
Retailer 17
-
£2,169 GBP
$2,910 USD
View
Price last confirmed 12 days ago
Most Expensive
Rare Carat
A10-158B_l_799677051 · Oct 21
£2,202 GBP
$2,955 USD
View
Price last confirmed 12 days ago
17 more retailers have this diamond
Prices start from £182 GBPSave up to £1,562 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+
1.30ct Radiant
£182 GBP