Oval|Lab Grown|IGI

1.59ct F SI1 Oval Lab Grown Diamond

VG • F/SI1 • IGI LG839682999

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839682999

Diamond specifications and retailer prices

From £228 GBP
$305 USD
As of November 1, 2026
Save £911 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,138 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.59ct lab-grown oval diamond

This 1.59ct lab-grown oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG839682999 or 839682999. Listed at 10 retailers as of October 29, 2026, with prices from £228 to £1,138, a £911 spread on the same certified stone. MOH London lists it at £1,138. 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

1.59
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839682999
Dimensions9.58 × 6.37 × 4.02 mm
L/W Ratio1.50
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.58 mm6.37 mm1.59 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839682999
Side View
Table 60.0%Crown 36.8°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 63.1%

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: Nov 1
Current: £1,138 GBP|Low: £283 GBP|High: £1,138 GBP|Avg: £563 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5£283 GBP
Retailer 3£362 GBP
Retailer 7£404 GBP
Retailer 4£429 GBP
Retailer 8£460 GBP
Retailer 2£498 GBP
Retailer 6£868 GBP
MOH London£1,138 GBP

13 data points across 8 retailers

10 retailers£228 GBP to £1,138 GBP

A
Cheapest Retailer
-
£228 GBP
$305 USD
Retailer 2
-
£283 GBP
$379 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£283 GBP
$379 USD
View
A
Retailer 4
-
£362 GBP
View
B+
Retailer 5
-
£404 GBP
$541 USD
View
B+
Retailer 6
-
£429 GBP
$575 USD
View
B+
Retailer 7
-
£460 GBP
$617 USD
View
B+
Retailer 8
-
£498 GBP
View
B
Retailer 9
-
£868 GBP
$1,163 USD
View
Most Expensive
B
MOH London
LG839682999 · Oct 29
£1,138 GBP
View
9 more retailers have this diamond
Prices start from £228 GBPSave up to £911 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 Oval
£228 GBP