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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 $456 AUD
$320 USD
As of October 29, 2026
Save $1,806 AUD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,262 AUD at MOH London · As of November 1, 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 $456 to $2,262, a $1,806 spread on the same certified stone. MOH London lists it at $2,262. 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

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: Oct 29
Current: $2,262 AUD|Low: $564 AUD|High: $2,274 AUD|Avg: $1,046 AUD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$564 AUD
Retailer 2$628 AUD
Retailer 4$854 AUD
Retailer 7$900 AUD
Retailer 8$917 AUD
Retailer 3$999 AUD
Retailer 6$1,656 AUD
MOH London$2,262 AUD

12 data points across 8 retailers

10 retailers$456 AUD to $2,262 AUD

A
Cheapest Retailer
-
$456 AUD
$320 USD
Retailer 2
-
$564 AUD
$396 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$564 AUD
$396 USD
View
A
Retailer 4
-
$628 AUD
£347 GBP
View
B+
Retailer 5
-
$854 AUD
$600 USD
View
B+
Retailer 6
-
$900 AUD
$632 USD
View
B+
Retailer 7
-
$917 AUD
$644 USD
View
B+
Retailer 8
-
$999 AUD
£553 GBP
View
B
Retailer 9
-
$1,656 AUD
$1,163 USD
View
Most Expensive
B
MOH London
LG838621979 · Nov 1
$2,262 AUD
£1,251 GBP
View
9 more retailers have this diamond
Prices start from $456 AUDSave up to $1,806 AUD

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
$456 AUD