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Round|Lab Grown|IGI

1.23ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG851617161

Shape and cutting style on the report: Round brilliant

Certificate IGI LG851617161

Diamond specifications and retailer prices

From $347 AUD
As of November 4, 2026
Save $693 AUD (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,393 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851617161 or 851617161. Listed at 12 retailers as of November 4, 2026, with a 200% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851617161
Dimensions6.83 × 6.85 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.83 mm6.85 mm1.23 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851617161
Side View
Table 58.0%Crown 34.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

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 4
Current: $1,393 AUD|Low: $347 AUD|High: $1,393 AUD|Avg: $727 AUD
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 4$347 AUD
Retailer 10$403 AUD
Retailer 3$504 AUD
Retailer 5$520 AUD
Retailer 7$549 AUD
Retailer 12$571 AUD
Retailer 9$650 AUD
Retailer 11$741 AUD
Retailer 2$987 AUD
Retailer 6$991 AUD
Retailer 8$1,040 AUD
MOH London$1,393 AUD

9 data points across 12 retailers

12 retailers$347 AUD to $1,040 AUD

A
Cheapest Retailer
-
$347 AUD
B+
Retailer 2
-
$403 AUD
View
Retailer 3
-
$504 AUD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$520 AUD
View
A
Retailer 5
-
$549 AUD
View
B+
Retailer 6
-
$571 AUD
View
B+
Retailer 7
-
$650 AUD
View
B+
Retailer 8
-
$741 AUD
View
B+
Retailer 9
-
$987 AUD
View
B+
Retailer 10
-
$991 AUD
View
B
Retailer 11
-
$1,040 AUD
View
Most Expensive
MOH London
LG851617161 · Oct 29
$1,393 AUD
£768 GBP
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from $347 AUDSave up to $693 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
1.23ct Round
$347 AUD