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Round|Lab Grown|IGI

0.78ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG476188286

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476188286

Diamond specifications and retailer prices

From $287 USD
As of October 29, 2026
Save $851 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,138 USD at MOH London · As of October 25, 2026
View at MOH London

About this 0.78ct lab-grown round diamond

This 0.78ct lab-grown round sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG476188286 or 476188286. Listed at 5 retailers as of October 25, 2026, with prices from $287 to $1,138, a $851 spread on the same certified stone. MOH London lists it at $1,138. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476188286
Dimensions5.87 × 5.89 × 3.64 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
5.87 mm5.89 mm0.78 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476188286
Side View
Table 56.0%Crown 35.5°GirdlePavilion 40.3°Culet: NoneDepth 61.9%

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: Oct 29
Current: $1,138 USD|Low: $287 USD|High: $4,044 USD|Avg: $1,056 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5$287 USD
Retailer 3$456 USD
Retailer 4$482 USD
Retailer 7$490 USD
Retailer 2$533 USD
MOH London$1,138 USD
Retailer 6$4,044 USD

42 data points across 7 retailers

5 retailers$287 USD to $1,138 USD

A
Cheapest Retailer
-
$287 USD
B+
Retailer 2
-
$456 USD
€434 EUR
View
B
Retailer 3
-
$482 USD
View
B
Retailer 4
-
$533 USD
£420 GBP
View
Most Expensive
B
MOH London
LG476188286 · Oct 25
$1,138 USD
£896 GBP
View
4 more retailers have this diamond
Prices start from $287 USDSave up to $851 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 Round
$287 USD