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Oval|Lab Grown|IGI

3.51ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG700539070

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG700539070

Diamond specifications and retailer prices

From $4,000 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $4,000 USD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 3.51ct lab-grown oval diamond

This 3.51ct 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 LG700539070 or 700539070. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.51
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700539070
Dimensions12.65 × 8.50 × 5.22 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.65 mm8.50 mm3.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700539070
Side View
Table 62.0%Crown 34.7°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 61.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $4,000 USD|Low: $730 USD|High: $4,900 USD|Avg: $2,706 USD|-10.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
April 14, 2026
Retailer 5$730 USD
Retailer 2$1,047 USD
Retailer 3$1,684 USD
Retailer 4$1,753 USD
Brilliant Earth$4,000 USD

18 data points across 5 retailers

1 retailer

B
Brilliant Earth
14805075Y · Oct 29
$4,000 USD
View

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.

B
3.51ct Oval
$4,000 USD