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Oval|Lab Grown|IGI

0.78ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG843674485

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843674485

Diamond specifications and retailer prices

From $342 AUD
$240 USD
As of November 1, 2026
Save $1,292 AUD (79%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,635 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 0.78ct lab-grown oval diamond

This 0.78ct lab-grown oval sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843674485 or 843674485. Listed at 7 retailers as of October 26, 2026, with prices from $342 to $1,635, a $1,292 spread on the same certified stone. MOH London lists it at $1,635. 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

0.78
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843674485
Dimensions7.05 × 4.98 × 3.33 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.05 mm4.98 mm0.78 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG843674485
Side View
Table 60.0%Crown 36.9°Girdle: STK-THKPavilion 42.2°Culet: NoneDepth 66.9%

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: Nov 1
Current: $1,635 AUD|Low: $342 AUD|High: $1,640 AUD|Avg: $583 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$342 AUD
Retailer 3$358 AUD
Retailer 7$387 AUD
Retailer 2$392 AUD
Retailer 4$426 AUD
Retailer 6$701 AUD
MOH London$1,635 AUD

20 data points across 7 retailers

7 retailers$342 AUD to $1,635 AUD

A
Cheapest Retailer
-
$342 AUD
$240 USD
A
Retailer 2
-
$358 AUD
€239 EUR
View
A
Retailer 3
-
$387 AUD
$271 USD
View
A
Retailer 4
-
$392 AUD
£216 GBP
View
A
Retailer 5
-
$426 AUD
£235 GBP
View
B+
Retailer 6
-
$701 AUD
$491 USD
View
Most Expensive
B
MOH London
LG843674485 · Oct 26
$1,635 AUD
£902 GBP
View
6 more retailers have this diamond
Prices start from $342 AUDSave up to $1,292 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
0.78ct Oval
$342 AUD