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Round|Lab Grown|IGI

0.78ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG759527854

Shape and cutting style on the report: Round brilliant

Certificate IGI LG759527854

Diamond specifications and retailer prices

From $146 USD
As of October 29, 2026
Save $875 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,021 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 LG759527854 or 759527854. Listed at 15 retailers as of October 29, 2026, with prices from $146 to $1,021, a $875 spread on the same certified stone. Reve Diamonds lists it at $1,021. 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 angle33.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG759527854
Dimensions5.90 × 5.93 × 3.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.90 mm5.93 mm0.78 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG759527854
Side View
Table 58.0%Crown 33.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $311 USD|Low: $140 USD|High: $856 USD|Avg: $323 USD|+6.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 10$146 USD
Retailer 2$162 USD
Retailer 5$169 USD
Retailer 8$180 USD
Retailer 4$181 USD
Retailer 12$181 USD
Retailer 11$255 USD
Retailer 1$311 USD
Retailer 7$314 USD
Retailer 13$491 USD
Retailer 3$581 USD
Retailer 9$614 USD
Retailer 6$850 USD

43 data points across 13 retailers

15 retailers$146 USD to $1,021 USD

A
Cheapest Retailer
-
$146 USD
A
Retailer 2
-
$162 USD
View
Final sale: no returns
A
Retailer 3
-
$169 USD
View
A
Retailer 4
-
$181 USD
View
A
Retailer 5
-
$181 USD
View
A
Retailer 6
-
$255 USD
View
A
Retailer 7
-
$258 USD
View
B+
Retailer 8
-
$311 USD
£245 GBP
View
A
Retailer 9
-
$314 USD
€299 EUR
View
B
Retailer 10
-
$491 USD
View
B
Retailer 11
-
$581 USD
View
B
Retailer 12
-
$614 USD
View
B
Retailer 13
-
$637 USD
View
B
Retailer 14
-
$850 USD
£669 GBP
View
Most Expensive
B
Reve Diamonds
B771BE83E · Oct 30
$1,021 USD
View
14 more retailers have this diamond
Prices start from $146 USDSave up to $875 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
$146 USD