Round|Lab Grown|IGI

12.33ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG577395300

Shape and cutting style on the report: Round brilliant

Certificate IGI LG577395300

Diamond specifications and retailer prices

From $1,526 USD
£1,201 GBP
As of October 30, 2026
Save $9,745 USD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $11,271 USD at Adiamor · As of October 31, 2026
View at Adiamor

About this 12.33ct lab-grown round diamond

This 12.33ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG577395300 or 577395300. Listed at 12 retailers as of October 30, 2026, with prices from $1,526 to $11,271, a $9,745 spread on the same certified stone. Adiamor lists it at $11,271. 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

12.33
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577395300
Dimensions14.99 × 14.92 × 9.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.99 mm14.92 mm12.33 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577395300
Side View
Table 57.0%Crown 34.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.7%

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 30
Current: $11,271 USD|Low: $1,526 USD|High: $25,936 USD|Avg: $6,910 USD
Adiamor
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 31, 2026
Retailer 9$1,526 USD
Retailer 11$1,633 USD
Retailer 2$1,777 USD
Retailer 3$1,894 USD
Retailer 12$2,065 USD
Retailer 15$2,227 USD
Retailer 14$2,479 USD
Retailer 10$2,674 USD
Retailer 13$3,011 USD
Retailer 8$3,266 USD
Retailer 4$3,550 USD
Retailer 5$7,170 USD
Adiamor$11,271 USD
Retailer 7$20,340 USD
Retailer 6$25,936 USD

4 data points across 15 retailers

12 retailers$1,526 USD to $11,271 USD

A
Cheapest Retailer
-
$1,526 USD
£1,201 GBP
A
Retailer 2
-
$1,633 USD
View
A
Retailer 3
-
$1,777 USD
View
A
Retailer 4
-
$1,894 USD
View
A
Retailer 5
-
$2,065 USD
View
A
Retailer 6
-
$2,227 USD
HK$17,400 HKD
View
A
Retailer 7
-
$2,479 USD
View
A
Retailer 8
-
$2,674 USD
£2,105 GBP
View
A
Retailer 9
-
$3,011 USD
€2,868 EUR
View
A
Retailer 10
-
$3,266 USD
View
A
Retailer 11
-
$3,550 USD
View
Most Expensive
B
Adiamor
D-82828869 · Oct 31
$11,271 USD
View
11 more retailers have this diamond
Prices start from $1,526 USDSave up to $9,745 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
12.33ct Round
$1,526 USD