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Radiant|Lab Grown|IGI

1.59ct F VVS1 Radiant Lab Grown Diamond

ID • F/VVS1 • IGI LG835665578

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

Certificate IGI LG835665578

Diamond specifications and retailer prices

From £368 GBP
$493 USD
As of November 1, 2026
Save £1,416 GBP (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,784 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.59ct lab-grown radiant diamond

This 1.59ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG835665578 or 835665578. Listed at 11 retailers as of October 31, 2026, with prices from £368 to £1,784, a £1,416 spread on the same certified stone. Brilliant Earth lists it at £1,784. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835665578
Dimensions8.08 × 6.00 × 3.78 mm
L/W Ratio1.35
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
8.08 mm6.00 mm1.59 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835665578
Side View
Table 64.0%Crown 41.2°Girdle: Slightly ThickPavilion 32.5°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
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: Nov 1
Current: £1,784 GBP|Low: £340 GBP|High: £1,836 GBP|Avg: £679 GBP|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8£368 GBP
Retailer 9£407 GBP
Retailer 4£411 GBP
Retailer 2£413 GBP
Retailer 11£502 GBP
Retailer 10£650 GBP
Retailer 3£738 GBP
Retailer 7£838 GBP
Retailer 5£872 GBP
Retailer 6£911 GBP
Brilliant Earth£1,784 GBP

44 data points across 11 retailers

11 retailers£368 GBP to £1,784 GBP

A
Cheapest Retailer
-
£368 GBP
$493 USD
A
Retailer 2
-
£407 GBP
$546 USD
View
A
Retailer 3
-
£411 GBP
View
A
Retailer 4
-
£413 GBP
€527 EUR
View
B+
Retailer 5
-
£502 GBP
$673 USD
View
B+
Retailer 6
-
£663 GBP
$889 USD
View
B+
Retailer 7
-
£738 GBP
$989 USD
View
Retailer 8
-
£838 GBP
A$1,727 AUD
View
Price last confirmed 32 days ago
B+
Retailer 9
-
£872 GBP
View
Retailer 10
-
£911 GBP
$1,220 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
21648528A · Oct 31
£1,784 GBP
$2,390 USD
View
10 more retailers have this diamond
Prices start from £368 GBPSave up to £1,416 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
1.59ct Radiant
£368 GBP