Oval|Lab Grown|IGI

3.09ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG813621208

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG813621208

Diamond specifications and retailer prices

From $418 USD
As of October 31, 2026
Save $2,382 USD (85%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,800 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.09ct lab-grown oval diamond

This 3.09ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG813621208 or 813621208. Listed at 4 retailers as of October 31, 2026, with prices from $418 to $2,800, a $2,382 spread on the same certified stone. Brilliant Earth lists it at $2,800. 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

3.09
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813621208
Dimensions11.85 × 8.14 × 5.08 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.85 mm8.14 mm3.09 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813621208
Side View
Table 61.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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 31
Current: $2,800 USD|Low: $408 USD|High: $2,800 USD|Avg: $1,176 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3$418 USD
Retailer 5$690 USD
Retailer 6$703 USD
Retailer 2$873 USD
Retailer 4$1,226 USD
Retailer 7$1,559 USD
Brilliant Earth$2,800 USD

38 data points across 7 retailers

4 retailers$418 USD to $2,800 USD

A
Cheapest Retailer
-
$418 USD
Final sale: no returns
A
Retailer 2
-
$873 USD
£687 GBP
View
Retailer 3
-
$1,226 USD
View
Price last confirmed 45 days ago
Most Expensive
B
Brilliant Earth
21226399A · Oct 31
$2,800 USD
View
3 more retailers have this diamond
Prices start from $418 USDSave up to $2,382 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
3.09ct Oval
$418 USD