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 $320 USD
As of October 29, 2026
Save $1,278 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,598 USD 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 $320 to $1,598, a $1,278 spread on the same certified stone. MOH London lists it at $1,598. 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
Color
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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Price History

Last verified: Oct 29
Current: $1,598 USD|Low: $396 USD|High: $1,598 USD|Avg: $726 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$396 USD
Retailer 2$443 USD
Retailer 4$600 USD
Retailer 7$632 USD
Retailer 8$644 USD
Retailer 3$708 USD
Retailer 6$1,163 USD
MOH London$1,598 USD

10 data points across 8 retailers

10 retailers$320 USD to $1,598 USD

A
Cheapest Retailer
-
$320 USD
A
Retailer 2
-
$396 USD
View
A
Retailer 3
-
$396 USD
View
A
Retailer 4
-
$443 USD
£349 GBP
View
B+
Retailer 5
-
$600 USD
View
B+
Retailer 6
-
$632 USD
View
B+
Retailer 7
-
$644 USD
View
B+
Retailer 8
-
$708 USD
£557 GBP
View
B
Retailer 9
-
$1,163 USD
View
Most Expensive
B
MOH London
LG838621979 · Oct 29
$1,598 USD
£1,258 GBP
View
9 more retailers have this diamond
Prices start from $320 USDSave up to $1,278 USD

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
$320 USD