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Marquise|Lab Grown|IGI

1.23ct D VS1 Marquise Lab Grown Diamond

VG • D/VS1 • IGI LG753506828

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG753506828

Diamond specifications and retailer prices

From $599 AUD
As of November 3, 2026
Save $2,403 AUD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,002 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG753506828 or 753506828. Listed at 12 retailers as of November 1, 2026, with prices from $599 to $3,002, a $2,403 spread on the same certified stone. MOH London lists it at $3,002. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG753506828
Dimensions10.74 × 5.61 × 3.56 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.74 mm5.61 mm1.23 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG753506828
Side View
Table 61.0%Crown 37.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.5%

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 3
Current: $3,002 AUD|Low: $525 AUD|High: $5,303 AUD|Avg: $1,920 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 10$599 AUD
Retailer 11$667 AUD
Retailer 2$1,088 AUD
Retailer 5$1,162 AUD
Retailer 3$1,167 AUD
Retailer 4$1,340 AUD
Retailer 6$2,076 AUD
Retailer 8$2,681 AUD
Retailer 9$2,835 AUD
MOH London$3,002 AUD
Retailer 7$5,303 AUD

29 data points across 11 retailers

12 retailers$599 AUD to $3,002 AUD

A
Cheapest Retailer
-
$599 AUD
A
Retailer 2
-
$667 AUD
View
Final sale: no returns
B+
Retailer 3
-
$1,088 AUD
View
Retailer 4
-
$1,098 AUD
View
Price last confirmed 28 days ago
Retailer 5
-
$1,162 AUD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$1,167 AUD
View
B
Retailer 7
-
$1,340 AUD
View
B
Retailer 8
-
$2,076 AUD
View
B
Retailer 9
-
$2,681 AUD
View
B
Retailer 10
-
$2,835 AUD
View
Most Expensive
B
MOH London
LG753506828 · Nov 1
$3,002 AUD
£1,658 GBP
View
10 more retailers have this diamond
Prices start from $599 AUDSave up to $2,403 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
$599 AUD