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 $240 USD
As of October 30, 2026
Save $906 USD (79%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,146 USD 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 $240 to $1,146, a $906 spread on the same certified stone. MOH London lists it at $1,146. 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
Color
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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,146 USD|Low: $240 USD|High: $1,149 USD|Avg: $406 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 5$240 USD
Retailer 2$251 USD
Retailer 7$271 USD
Retailer 3$275 USD
Retailer 4$298 USD
Retailer 6$491 USD
MOH London$1,146 USD

18 data points across 7 retailers

7 retailers$240 USD to $1,146 USD

A
Cheapest Retailer
-
$240 USD
A
Retailer 2
-
$251 USD
€239 EUR
View
A
Retailer 3
-
$271 USD
View
A
Retailer 4
-
$275 USD
£216 GBP
View
A
Retailer 5
-
$298 USD
£235 GBP
View
B+
Retailer 6
-
$491 USD
View
Most Expensive
B
MOH London
LG843674485 · Oct 26
$1,146 USD
£902 GBP
View
6 more retailers have this diamond
Prices start from $240 USDSave up to $906 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
0.78ct Oval
$240 USD