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Round|Lab Grown|IGI

3.10ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG660419669

Shape and cutting style on the report: Round brilliant

Certificate IGI LG660419669

Diamond specifications and retailer prices

From $352 USD
As of October 29, 2026
Save $1,413 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,765 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.1ct lab-grown round diamond

This 3.1ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG660419669 or 660419669. Listed at 13 retailers as of October 28, 2026, with prices from $352 to $1,765, a $1,413 spread on the same certified stone. Rare Carat lists it at $1,765. 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

3.10
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660419669
Dimensions9.42 × 9.39 × 5.73 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.42 mm9.39 mm3.10 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660419669
Side View
Table 58.0%Crown 34.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.9%

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: $1,765 USD|Low: $352 USD|High: $4,266 USD|Avg: $1,438 USD|-13.2%
Rare Carat
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
Retailer 15
October 29, 2026
Retailer 2$352 USD
Retailer 5$409 USD
Retailer 4$437 USD
Retailer 13$486 USD
Retailer 11$697 USD
Retailer 9$699 USD
Retailer 15$702 USD
Retailer 12$755 USD
Retailer 8$781 USD
Retailer 14$983 USD
Retailer 3$1,404 USD
Retailer 10$1,716 USD
Rare Carat$1,765 USD
Retailer 7$3,970 USD
Retailer 6$4,266 USD

3 data points across 15 retailers

13 retailers$352 USD to $1,765 USD

A
Cheapest Retailer
-
$352 USD
A
Retailer 2
-
$409 USD
View
A
Retailer 3
-
$437 USD
View
A
Retailer 4
-
$486 USD
HK$3,800 HKD
View
A
Retailer 5
-
$697 USD
£549 GBP
View
A
Retailer 6
-
$699 USD
€666 EUR
View
B+
Retailer 7
-
$702 USD
View
A
Retailer 8
-
$755 USD
View
A
Retailer 9
-
$781 USD
£615 GBP
View
B+
Retailer 10
-
$983 USD
View
B
Retailer 11
-
$1,404 USD
View
B
Retailer 12
-
$1,716 USD
£1,351 GBP
View
Most Expensive
B
Rare Carat
KI6694196KF660 · Oct 28
$1,765 USD
View
12 more retailers have this diamond
Prices start from $352 USDSave up to $1,413 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
3.10ct Round
$352 USD