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Radiant|Lab Grown|IGI

0.77ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG818658685

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

Certificate IGI LG818658685

Diamond specifications and retailer prices

From £253 GBP
As of November 3, 2026
Save £882 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,135 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 0.77ct lab-grown radiant diamond

This 0.77ct lab-grown radiant sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818658685 or 818658685. Listed at 17 retailers as of November 3, 2026, with prices from £253 to £1,135, a £882 spread on the same certified stone. Reve Diamonds lists it at £1,135. 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

0.77
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.2°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658685
Dimensions6.43 × 4.60 × 3.06 mm
L/W Ratio1.40
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
6.43 mm4.60 mm0.77 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658685
Side View
Table 65.0%Crown 28.2°Girdle: ThickPavilion 36.7°Culet: NoneDepth 66.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £492 GBP|Low: £217 GBP|High: £1,136 GBP|Avg: £578 GBP|+0.3%
Retailer 1
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
Reve Diamonds
November 4, 2026
Retailer 13£226 GBP
Retailer 4£253 GBP
Retailer 3£280 GBP
Retailer 15£280 GBP
Retailer 14£395 GBP
Retailer 5£400 GBP
Retailer 10£456 GBP
Retailer 1£492 GBP
Retailer 6£507 GBP
Retailer 8£508 GBP
Retailer 11£515 GBP
Retailer 2£629 GBP
Retailer 12£861 GBP
Retailer 7£935 GBP
Retailer 9£1,121 GBP
Reve Diamonds£1,135 GBP

33 data points across 16 retailers

17 retailers£253 GBP to £1,135 GBP

Retailer 1
-
£226 GBP
Price last confirmed 27 days ago
A
Retailer 2
-
£253 GBP
View
Final sale: no returns
Retailer 3
-
£280 GBP
View
Price last confirmed 32 days ago
Retailer 4
-
£280 GBP
View
Price last confirmed 23 days ago
A
Retailer 5
-
£395 GBP
View
B+
Retailer 6
-
£400 GBP
View
B+
Retailer 7
-
£456 GBP
View
B+
Retailer 8
-
£492 GBP
View
B+
Retailer 9
-
£507 GBP
View
B+
Retailer 10
-
£508 GBP
View
B+
Retailer 11
-
£515 GBP
View
B
Retailer 12
-
£629 GBP
View
B
Retailer 13
-
£861 GBP
View
Retailer 14
-
£901 GBP
View
Price last confirmed 35 days ago
B
Retailer 15
-
£935 GBP
View
B
Retailer 16
-
£1,121 GBP
View
Most Expensive
B
Reve Diamonds
CEF26E3C5 · Nov 4
£1,135 GBP
$1,522 USD
View
16 more retailers have this diamond
Prices start from £253 GBPSave up to £882 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
0.77ct Radiant
£253 GBP