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Marquise|Lab Grown|IGI

1.05ct D SI1 Marquise Lab Grown Diamond

VG • D/SI1 • IGI LG844636747

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844636747

Diamond specifications and retailer prices

From $316 AUD
As of November 1, 2026
Save $703 AUD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,019 AUD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG844636747 or 844636747. Listed at 10 retailers as of November 1, 2026, with prices from $316 to $1,019, a $703 spread on the same certified stone. Brilliant Earth lists it at $1,019. 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

1.05
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844636747
Dimensions10.32 × 5.41 × 3.28 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.32 mm5.41 mm1.05 ctD / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG844636747
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.6%

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 1
Current: $1,019 AUD|Low: $246 AUD|High: $1,528 AUD|Avg: $593 AUD|-33.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 3$246 AUD
Retailer 11$316 AUD
Retailer 6$327 AUD
Retailer 9$466 AUD
Retailer 7$473 AUD
Retailer 10$501 AUD
Retailer 12$512 AUD
Retailer 8$587 AUD
Retailer 2$713 AUD
Retailer 4$754 AUD
Retailer 5$815 AUD
Brilliant Earth$1,019 AUD

10 data points across 12 retailers

10 retailers$316 AUD to $1,019 AUD

A
Cheapest Retailer
-
$316 AUD
Retailer 2
-
$466 AUD
View
Price last confirmed 12 days ago
Retailer 3
-
$473 AUD
View
Price last confirmed 10 days ago
Retailer 4
-
$501 AUD
View
Price last confirmed 12 days ago
Retailer 5
-
$512 AUD
View
Price last confirmed 12 days ago
Retailer 6
-
$587 AUD
View
Price last confirmed 11 days ago
B
Retailer 7
-
$713 AUD
View
B
Retailer 8
-
$754 AUD
View
Retailer 9
-
$815 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
22235177A · Nov 3
$1,019 AUD
$700 USD
View
9 more retailers have this diamond
Prices start from $316 AUDSave up to $703 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
1.05ct Marquise
$316 AUD