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Oval|Lab Grown|IGI

1.68ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG838621979

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG838621979

Diamond specifications and retailer prices

From £239 GBP
$320 USD
As of October 29, 2026
Save £954 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,192 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.68ct lab-grown oval diamond

This 1.68ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG838621979 or 838621979. Listed at 10 retailers as of October 29, 2026, with prices from £239 to £1,192, a £954 spread on the same certified stone. MOH London lists it at £1,192. 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

1.68
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.1°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838621979
Dimensions9.48 × 6.61 × 4.18 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.48 mm6.61 mm1.68 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG838621979
Side View
Table 65.0%Crown 35.1°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.2%

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: Oct 29
Current: £1,192 GBP|Low: £296 GBP|High: £1,192 GBP|Avg: £542 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5£296 GBP
Retailer 2£330 GBP
Retailer 4£448 GBP
Retailer 7£472 GBP
Retailer 8£481 GBP
Retailer 3£528 GBP
Retailer 6£868 GBP
MOH London£1,192 GBP

10 data points across 8 retailers

10 retailers£239 GBP to £1,192 GBP

A
Cheapest Retailer
-
£239 GBP
$320 USD
A
Retailer 2
-
£296 GBP
$396 USD
View
A
Retailer 3
-
£296 GBP
$396 USD
View
A
Retailer 4
-
£330 GBP
View
B+
Retailer 5
-
£448 GBP
$600 USD
View
B+
Retailer 6
-
£472 GBP
$632 USD
View
B+
Retailer 7
-
£481 GBP
$644 USD
View
B+
Retailer 8
-
£528 GBP
View
B
Retailer 9
-
£868 GBP
$1,163 USD
View
Most Expensive
B
MOH London
LG838621979 · Oct 29
£1,192 GBP
View
9 more retailers have this diamond
Prices start from £239 GBPSave up to £954 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
1.68ct Oval
£239 GBP