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Oval|Lab Grown|IGI

1.68ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG698525958

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG698525958

Diamond specifications and retailer prices

From $420 AUD
$295 USD
As of October 29, 2026
Save $1,679 AUD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,099 AUD 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 top-tier cut grade and certified by IGI LG698525958 or 698525958. Listed at 9 retailers as of October 29, 2026, with prices from $420 to $2,099, a $1,679 spread on the same certified stone. MOH London lists it at $2,099. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.68
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG698525958
Dimensions9.66 × 6.67 × 4.11 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.66 mm6.67 mm1.68 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG698525958
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.6%

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: $2,099 AUD|Low: $336 AUD|High: $2,112 AUD|Avg: $1,085 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7$420 AUD
Retailer 11$470 AUD
Retailer 10$487 AUD
Retailer 2$582 AUD
Retailer 9$853 AUD
Retailer 5$854 AUD
Retailer 4$939 AUD
Retailer 12$1,193 AUD
Retailer 3$1,396 AUD
Retailer 6$1,600 AUD
Retailer 8$1,674 AUD
MOH London$2,099 AUD

36 data points across 12 retailers

9 retailers$420 AUD to $2,099 AUD

A
Cheapest Retailer
-
$420 AUD
$295 USD
A
Retailer 2
-
$470 AUD
$330 USD
View
Final sale: no returns
A
Retailer 3
-
$487 AUD
$342 USD
View
A
Retailer 4
-
$582 AUD
£322 GBP
View
B+
Retailer 5
-
$853 AUD
$599 USD
View
A
Retailer 6
-
$854 AUD
$600 USD
View
B
Retailer 7
-
$1,600 AUD
$1,124 USD
View
B
Retailer 8
-
$1,674 AUD
$1,176 USD
View
Most Expensive
B
MOH London
LG698525958 · Oct 29
$2,099 AUD
£1,161 GBP
View
8 more retailers have this diamond
Prices start from $420 AUDSave up to $1,679 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
$420 AUD