CaratHunter
Plans
Radiant|Lab Grown|IGI

3.10ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG668470916

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG668470916

Diamond specifications and retailer prices

From $1,281 USD
£1,009 GBP
As of October 28, 2026
1 retailer carries this diamond
Only listing: $1,281 USD at Diamond Quarter
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 Diamond Quarter

About this 3.1ct lab-grown radiant diamond

This 3.1ct lab-grown radiant 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 LG668470916 or 668470916. Listed at a single retailer as of October 28, 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

3.10
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668470916
Dimensions10.46 × 7.30 × 4.81 mm
L/W Ratio1.43
Culet sizePointed
Top View
10.46 mm7.30 mm3.10 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668470916
Side View
Table 65.0%Crown 41.8°Girdle: MediumPavilion 34.6°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $675 USD|Low: $221 USD|High: $5,080 USD|Avg: $1,324 USD|-15.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
August 28, 2026
Retailer 6$221 USD
Retailer 10$245 USD
Retailer 7$555 USD
Retailer 4$614 USD
Retailer 1$675 USD
Retailer 5$690 USD
Retailer 3$1,011 USD
Retailer 9$1,067 USD
Retailer 2$2,442 USD
Retailer 8$2,900 USD

78 data points across 10 retailers

1 retailer

B
Diamond Quarter
3.1SI1ELG1645E2N · Oct 28
$1,281 USD
£1,009 GBP
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
3.10ct Radiant
$1,281 USD