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Round|Lab Grown|IGI

1.20ct J VS2 Round Lab Grown Diamond

ID • J/VS2 • IGI LG400912172

Shape and cutting style on the report: Round brilliant

Certificate IGI LG400912172

Diamond specifications and retailer prices

From $968 AUD
$680 USD
As of October 30, 2026
Save $5,559 AUD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,527 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG400912172 or 400912172. Listed at 12 retailers as of October 29, 2026, with prices from $968 to $6,527, a $5,559 spread on the same certified stone. MOH London lists it at $6,527. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
J
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG400912172
Dimensions6.90 × 6.86 × 4.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.90 mm6.86 mm1.20 ctJ / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400912172
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.3%

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: $6,527 AUD|Low: $968 AUD|High: $6,577 AUD|Avg: $2,987 AUD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 2$968 AUD
Retailer 7$1,741 AUD
Retailer 11$1,950 AUD
Retailer 8$2,020 AUD
Retailer 10$2,020 AUD
Retailer 12$2,264 AUD
Retailer 4$2,339 AUD
Retailer 13$2,833 AUD
Retailer 9$3,205 AUD
Retailer 6$3,457 AUD
Retailer 3$3,871 AUD
Retailer 5$4,521 AUD
MOH London$6,527 AUD

21 data points across 13 retailers

12 retailers$968 AUD to $6,527 AUD

A
Cheapest Retailer
-
$968 AUD
$680 USD
B+
Retailer 2
-
$1,741 AUD
$1,223 USD
View
B+
Retailer 3
-
$1,895 AUD
$1,331 USD
View
B+
Retailer 4
-
$1,950 AUD
$1,370 USD
View
Final sale: no returns
Retailer 5
-
$2,020 AUD
$1,419 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$2,020 AUD
$1,419 USD
View
B+
Retailer 7
-
$2,264 AUD
$1,590 USD
View
B
Retailer 8
-
$3,205 AUD
$2,251 USD
View
B
Retailer 9
-
$3,457 AUD
€2,313 EUR
View
B
Retailer 10
-
$3,787 AUD
$2,660 USD
View
B
Retailer 11
-
$3,871 AUD
$2,719 USD
View
Most Expensive
B
MOH London
LG400912172 · Oct 29
$6,527 AUD
£3,610 GBP
View
11 more retailers have this diamond
Prices start from $968 AUDSave up to $5,559 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
1.20ct Round
$968 AUD