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Radiant|Lab Grown|IGI

1.30ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG787612679

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

Certificate IGI LG787612679

Diamond specifications and retailer prices

From £189 GBP
$253 USD
As of October 30, 2026
Save £1,505 GBP (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,694 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787612679 or 787612679. Listed at 21 retailers as of October 30, 2026, with prices from £189 to £1,694, a £1,505 spread on the same certified stone. Brilliant Earth lists it at £1,694. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787612679
Dimensions7.75 × 5.38 × 3.70 mm
L/W Ratio1.44
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 mm5.38 mm1.30 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787612679
Side View
Table 64.0%Crown 40.7°Girdle: Slightly ThickPavilion 36.2°Culet: NoneDepth 68.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,694 GBP|Low: £181 GBP|High: £1,717 GBP|Avg: £538 GBP|+8.6%
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
November 1, 2026
Retailer 3£189 GBP
Retailer 8£211 GBP
Retailer 6£219 GBP
Retailer 4£234 GBP
Retailer 7£234 GBP
Retailer 11£315 GBP
Retailer 14£355 GBP
Retailer 12£403 GBP
Retailer 10£421 GBP
Retailer 9£443 GBP
Retailer 13£570 GBP
Retailer 16£572 GBP
Retailer 5£754 GBP
Retailer 2£939 GBP
Retailer 15£1,362 GBP
Brilliant Earth£1,694 GBP

44 data points across 16 retailers

21 retailers£189 GBP to £1,694 GBP

A
Cheapest Retailer
-
£189 GBP
$253 USD
A
Retailer 2
-
£211 GBP
$283 USD
View
Final sale: no returns
A
Retailer 3
-
£219 GBP
$294 USD
View
Retailer 4
-
£234 GBP
$314 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£234 GBP
$314 USD
View
A
Retailer 6
-
£315 GBP
$422 USD
View
A
Retailer 7
-
£355 GBP
$475 USD
View
A
Retailer 8
-
£403 GBP
ZAR 8,719 ZAR
View
A
Retailer 9
-
£421 GBP
€537 EUR
View
A
Retailer 10
-
£443 GBP
View
A
Retailer 11
-
£570 GBP
A$1,176 AUD
View
B+
Retailer 12
-
£572 GBP
$767 USD
View
B+
Retailer 13
-
£666 GBP
$893 USD
View
B+
Retailer 14
-
£754 GBP
$1,010 USD
View
B+
Retailer 15
-
£792 GBP
$1,061 USD
View
B+
Retailer 16
-
£939 GBP
View
B
Retailer 17
-
£1,018 GBP
$1,364 USD
View
Retailer 18
-
£1,362 GBP
$1,825 USD
View
Price last confirmed 13 days ago
Retailer 19
-
£1,454 GBP
$1,948 USD
View
Price last confirmed 83 days ago
Retailer 20
-
£1,560 GBP
$2,090 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Brilliant Earth
21312643A · Oct 31
£1,694 GBP
$2,270 USD
View
20 more retailers have this diamond
Prices start from £189 GBPSave up to £1,505 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
£189 GBP