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Round|Lab Grown|IGI

3.23ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG783638303

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783638303

Diamond specifications and retailer prices

From $399 USD
As of October 29, 2026
Save $1,771 USD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,170 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.23ct lab-grown round diamond

This 3.23ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783638303 or 783638303. Listed at 17 retailers as of October 28, 2026, with prices from $399 to $2,170, a $1,771 spread on the same certified stone. Brilliant Earth lists it at $2,170. 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

3.23
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783638303
Dimensions9.39 × 9.46 × 5.85 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.39 mm9.46 mm3.23 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783638303
Side View
Table 57.0%Crown 34.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,170 USD|Low: $399 USD|High: $2,240 USD|Avg: $1,152 USD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8$399 USD
Retailer 5$640 USD
Retailer 9$784 USD
Retailer 4$792 USD
Retailer 10$806 USD
Retailer 2$809 USD
Retailer 7$1,189 USD
Retailer 6$1,835 USD
Retailer 3$1,942 USD
Brilliant Earth$2,170 USD

42 data points across 10 retailers

17 retailers$399 USD to $2,170 USD

A
Cheapest Retailer
-
$399 USD
A
Retailer 2
-
$446 USD
View
A
Retailer 3
-
$494 USD
View
A
Retailer 4
-
$494 USD
View
A
Retailer 5
-
$640 USD
View
B+
Retailer 6
-
$784 USD
View
A
Retailer 7
-
$792 USD
€754 EUR
View
A
Retailer 8
-
$806 USD
View
A
Retailer 9
-
$809 USD
£637 GBP
View
B+
Retailer 10
-
$1,103 USD
View
B+
Retailer 11
-
$1,189 USD
View
Retailer 12
-
$1,275 USD
View
Price last confirmed 44 days ago
B
Retailer 13
-
$1,589 USD
View
B
Retailer 14
-
$1,625 USD
View
Retailer 15
-
$1,835 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
$1,942 USD
£1,529 GBP
View
Most Expensive
B
Brilliant Earth
18543240A · Oct 28
$2,170 USD
View
16 more retailers have this diamond
Prices start from $399 USDSave up to $1,771 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
3.23ct Round
$399 USD