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Round|Lab Grown|IGI

1.20ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG670445426

Shape and cutting style on the report: Round brilliant

Certificate IGI LG670445426

Diamond specifications and retailer prices

From $383 AUD
$269 USD
As of November 1, 2026
Save $1,317 AUD (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,699 AUD at MOH London · As of October 26, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG670445426 or 670445426. Listed at 19 retailers as of October 26, 2026, with prices from $383 to $1,699, a $1,317 spread on the same certified stone. MOH London lists it at $1,699. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670445426
Dimensions6.77 × 6.81 × 4.22 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
6.77 mm6.81 mm1.20 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670445426
Side View
Table 57.0%Crown 35.7°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.1%

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 1
Current: $1,699 AUD|Low: $424 AUD|High: $1,718 AUD|Avg: $876 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 3$424 AUD
Retailer 11$595 AUD
Retailer 6$689 AUD
Retailer 7$728 AUD
Retailer 2$731 AUD
Retailer 9$755 AUD
Retailer 4$800 AUD
Retailer 8$1,034 AUD
Retailer 10$1,115 AUD
Retailer 5$1,253 AUD
MOH London$1,699 AUD

38 data points across 11 retailers

19 retailers$383 AUD to $1,699 AUD

A
Cheapest Retailer
-
$383 AUD
$269 USD
Final sale: no returns
A
Retailer 2
-
$396 AUD
$278 USD
View
Retailer 3
-
$424 AUD
$298 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$581 AUD
$408 USD
View
B+
Retailer 5
-
$595 AUD
$418 USD
View
Retailer 6
-
$686 AUD
View
Price last confirmed 122 days ago
B+
Retailer 7
-
$689 AUD
€461 EUR
View
B+
Retailer 8
-
$728 AUD
ZAR 8,259 ZAR
View
B+
Retailer 9
-
$731 AUD
£404 GBP
View
B+
Retailer 10
-
$755 AUD
$530 USD
View
B+
Retailer 11
-
$800 AUD
£443 GBP
View
B+
Retailer 12
-
$870 AUD
$611 USD
View
B
Retailer 13
-
$1,034 AUD
View
B
Retailer 14
-
$1,115 AUD
$783 USD
View
B
Retailer 15
-
$1,253 AUD
$880 USD
View
B
Retailer 16
-
$1,365 AUD
SGD 1,296 SGD
View
B
Retailer 17
-
$1,436 AUD
$1,009 USD
View
B
Retailer 18
-
$1,505 AUD
$1,057 USD
View
Most Expensive
B
MOH London
LG670445426 · Oct 26
$1,699 AUD
£940 GBP
View
18 more retailers have this diamond
Prices start from $383 AUDSave up to $1,317 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
$383 AUD