CaratHunter
Plans
Marquise|Lab Grown|IGI

3.03ct D SI1 Marquise Lab Grown Diamond

VG • D/SI1 • IGI LG843624204

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843624204

Diamond specifications and retailer prices

From $584 AUD
$410 USD
As of November 1, 2026
Save $3,673 AUD (86%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,257 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.03ct lab-grown marquise diamond

This 3.03ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG843624204 or 843624204. Listed at 3 retailers as of October 31, 2026, with prices from $584 to $4,257, a $3,673 spread on the same certified stone. Brilliant Earth lists it at $4,257. 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

3.03
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843624204
Dimensions14.20 × 7.52 × 4.88 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.20 mm7.52 mm3.03 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843624204
Side View
Table 59.0%Crown 35.9°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 64.9%

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: $4,257 AUD|Low: $584 AUD|High: $6,748 AUD|Avg: $3,226 AUD|-36.9%
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$584 AUD
Retailer 2$1,212 AUD
Brilliant Earth$4,257 AUD

23 data points across 3 retailers

3 retailers$584 AUD to $4,257 AUD

A
Cheapest Retailer
-
$584 AUD
$410 USD
Final sale: no returns
B+
Retailer 2
-
$1,212 AUD
£671 GBP
View
Most Expensive
B
Brilliant Earth
21760287A · Oct 31
$4,257 AUD
$2,990 USD
View
2 more retailers have this diamond
Prices start from $584 AUDSave up to $3,673 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
3.03ct Marquise
$584 AUD