CaratHunter
Plans
Round|Lab Grown|IGI

3.00ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG485136521

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485136521

Diamond specifications and retailer prices

From $2,400 AUD
As of November 5, 2026
Save $15,474 AUD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $17,873 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 3ct lab-grown round diamond

This 3ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG485136521 or 485136521. Listed at 11 retailers as of November 5, 2026, with prices from $2,400 to $17,873, a $15,474 spread on the same certified stone. MOH London lists it at $17,873. 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

3.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485136521
Dimensions9.31 × 9.24 × 5.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
9.31 mm9.24 mm3.00 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485136521
Side View
Table 61.5%Crown 34.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 59.6%

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: Nov 5
Current: $17,873 AUD|Low: $2,400 AUD|High: $18,162 AUD|Avg: $10,135 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2$2,400 AUD
Retailer 4$7,592 AUD
Retailer 7$8,504 AUD
Retailer 5$8,808 AUD
Retailer 8$8,828 AUD
Retailer 9$9,425 AUD
Retailer 3$10,847 AUD
Retailer 6$13,605 AUD
MOH London$17,873 AUD

17 data points across 9 retailers

11 retailers$2,400 AUD to $17,873 AUD

A
Cheapest Retailer
-
$2,400 AUD
B+
Retailer 2
-
$7,592 AUD
View
B+
Retailer 3
-
$7,957 AUD
View
B+
Retailer 4
-
$8,504 AUD
View
Final sale: no returns
Retailer 5
-
$8,808 AUD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$8,808 AUD
View
B+
Retailer 7
-
$8,828 AUD
View
B
Retailer 8
-
$10,455 AUD
View
B
Retailer 9
-
$10,847 AUD
View
B
Retailer 10
-
$13,605 AUD
View
Most Expensive
B
MOH London
LG485136521 · Nov 5
$17,873 AUD
£9,852 GBP
View
10 more retailers have this diamond
Prices start from $2,400 AUDSave up to $15,474 AUD

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
3.00ct Round
$2,400 AUD