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Round|Lab Grown|IGI

3.12ct J VS2 Round Lab Grown Diamond

ID • J/VS2 • IGI LG490174547

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490174547

Diamond specifications and retailer prices

From $3,171 AUD
As of November 5, 2026
11 retailers carry this diamond
Most expensive: $20,049 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 3.12ct lab-grown round diamond

This 3.12ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG490174547 or 490174547. Listed at 11 retailers as of November 5, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.12
Carat
J
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490174547
Dimensions9.34 × 9.29 × 5.79 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
9.34 mm9.29 mm3.12 ctJ / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490174547
Side View
Table 58.5%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $20,049 AUD|Low: $3,171 AUD|High: $22,806 AUD|Avg: $11,988 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2$3,171 AUD
Retailer 6$8,517 AUD
Retailer 9$8,925 AUD
Retailer 11$9,538 AUD
Retailer 12$9,871 AUD
Retailer 7$9,880 AUD
Retailer 3$10,519 AUD
Retailer 10$11,728 AUD
Retailer 5$11,952 AUD
Retailer 8$15,246 AUD
MOH London$20,049 AUD
Retailer 4$22,806 AUD

18 data points across 12 retailers

11 retailers

B
Cheapest Retailer
-
$3,171 AUD
Retailer 2
-
$8,517 AUD
View
Price under review
Retailer 3
-
$8,925 AUD
View
Price under review
Retailer 4
-
$9,538 AUD
View
Price under review
Final sale: no returns
Retailer 5
-
$9,871 AUD
View
Price under review
Retailer 6
-
$9,880 AUD
View
Price under review
Retailer 7
-
$9,880 AUD
View
Price under review
Retailer 8
-
$11,728 AUD
View
Price under review
Most Expensive
MOH London
LG490174547 · Nov 5
$20,049 AUD
£11,051 GBP
View
Price under review
8 more retailers have this diamond
Prices start from $3,171 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.

B
3.12ct Round
$3,171 AUD