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Oval|Lab Grown|IGI

3.00ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG821666557

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG821666557

Diamond specifications and retailer prices

From $413 USD
As of October 29, 2026
Save $1,478 USD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,891 USD at MOH London · As of October 29, 2026
View at MOH London

About this 3ct lab-grown oval diamond

This 3ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG821666557 or 821666557. Listed at 16 retailers as of October 29, 2026, with prices from $413 to $1,891, a $1,478 spread on the same certified stone. MOH London lists it at $1,891. 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

3.00
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821666557
Dimensions11.63 × 8.05 × 5.04 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.63 mm8.05 mm3.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821666557
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.6%

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: $1,891 USD|Low: $396 USD|High: $1,904 USD|Avg: $894 USD|-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
Retailer 13
Retailer 14
November 1, 2026
Retailer 10$413 USD
Retailer 4$462 USD
Retailer 12$462 USD
Retailer 6$512 USD
Retailer 13$512 USD
Retailer 8$630 USD
Retailer 7$660 USD
Retailer 14$808 USD
Retailer 5$813 USD
Retailer 2$843 USD
Retailer 9$1,436 USD
Retailer 3$1,646 USD
Retailer 11$1,873 USD
MOH London$1,891 USD

42 data points across 14 retailers

16 retailers$413 USD to $1,891 USD

A
Cheapest Retailer
-
$413 USD
A
Retailer 2
-
$462 USD
View
A
Retailer 3
-
$462 USD
View
Final sale: no returns
A
Retailer 4
-
$512 USD
View
A
Retailer 5
-
$512 USD
View
Retailer 6
-
$630 USD
£496 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
$660 USD
View
B+
Retailer 8
-
$808 USD
View
A
Retailer 9
-
$813 USD
View
A
Retailer 10
-
$843 USD
£664 GBP
View
B+
Retailer 11
-
$988 USD
View
B
Retailer 12
-
$1,436 USD
View
B+
Retailer 13
-
$1,646 USD
View
B+
Retailer 14
-
$1,680 USD
View
B
Retailer 15
-
$1,873 USD
View
Most Expensive
B
MOH London
LG821666557 · Oct 29
$1,891 USD
£1,489 GBP
View
15 more retailers have this diamond
Prices start from $413 USDSave up to $1,478 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
3.00ct Oval
$413 USD