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Marquise|Lab Grown|IGI

1.23ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG845651268

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845651268

Diamond specifications and retailer prices

From $404 AUD
As of November 5, 2026
Save $796 AUD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,200 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise 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 LG845651268 or 845651268. Listed at 9 retailers as of November 4, 2026, with prices from $404 to $1,200, a $796 spread on the same certified stone. Brilliant Earth lists it at $1,200. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845651268
Dimensions10.64 × 5.61 × 3.59 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.64 mm5.61 mm1.23 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845651268
Side View
Table 61.0%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,200 AUD|Low: $404 AUD|High: $1,200 AUD|Avg: $824 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2$404 AUD
Retailer 7$596 AUD
Retailer 9$597 AUD
Retailer 4$613 AUD
Retailer 3$641 AUD
Retailer 8$844 AUD
Retailer 6$1,097 AUD
Retailer 5$1,169 AUD
Brilliant Earth$1,200 AUD

6 data points across 9 retailers

9 retailers$404 AUD to $1,200 AUD

A
Cheapest Retailer
-
$404 AUD
A
Retailer 2
-
$596 AUD
View
A
Retailer 3
-
$597 AUD
View
A
Retailer 4
-
$613 AUD
View
A
Retailer 5
-
$641 AUD
View
B+
Retailer 6
-
$844 AUD
View
B+
Retailer 7
-
$1,097 AUD
View
B+
Retailer 8
-
$1,169 AUD
View
Most Expensive
B
Brilliant Earth
22394845A · Nov 4
$1,200 AUD
$840 USD
View
8 more retailers have this diamond
Prices start from $404 AUDSave up to $796 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 Marquise
$404 AUD