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Marquise|Lab Grown|IGI

1.50ct F SI1 Marquise Lab Grown Diamond

VG • F/SI1 • IGI LG843629193

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843629193

Diamond specifications and retailer prices

From $676 AUD
€451 EUR
As of October 27, 2026
Save $654 AUD (49%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,329 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.5ct lab-grown marquise diamond

This 1.5ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG843629193 or 843629193. Listed at 4 retailers as of October 27, 2026, with prices from $676 to $1,329, a $654 spread on the same certified stone. Taylor and Hart lists it at $1,329. 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

1.50
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.2°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843629193
Dimensions11.00 × 6.27 × 3.56 mm
L/W Ratio1.75
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.00 mm6.27 mm1.50 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG843629193
Side View
Table 68.0%Crown 32.2°Girdle: STK-THKPavilion 37.5°CuletDepth 56.8%

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: Oct 27
Current: $718 AUD|Low: $637 AUD|High: $1,329 AUD|Avg: $954 AUD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Taylor and Hart
November 3, 2026
Retailer 2$676 AUD
Retailer 1$718 AUD
Retailer 3$1,298 AUD
Taylor and Hart$1,329 AUD

18 data points across 4 retailers

4 retailers$676 AUD to $1,329 AUD

A
Cheapest Retailer
-
$676 AUD
€451 EUR
B+
Retailer 2
-
$718 AUD
£396 GBP
View
Retailer 3
-
$1,298 AUD
$910 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Taylor and Hart
HKK0ZRI · Oct 31
$1,329 AUD
$932 USD
View
3 more retailers have this diamond
Prices start from $676 AUDSave up to $654 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
1.50ct Marquise
$676 AUD