Marquise|Lab Grown|IGI

3.05ct G IF Marquise Lab Grown Diamond

GD • G/IF • IGI LG823681075

Shape and cutting style on the report: Modified marquise step cut

Certificate IGI LG823681075

Diamond specifications and retailer prices

From $6,298 AUD
£3,463 GBP
As of November 3, 2026
Save $2,924 AUD (32%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $9,221 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG823681075 or 823681075. Listed at 3 retailers as of November 2, 2026, with prices from $6,298 to $9,221, a $2,924 spread on the same certified stone. Brilliant Earth lists it at $9,221. 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

3.05
Carat
G
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823681075
Dimensions15.79 × 7.76 × 3.78 mm
L/W Ratio2.03
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.79 mm7.76 mm3.05 ctG / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823681075
Side View
Table 64.0%Crown 34.8°Girdle: Slightly ThickPavilion 35.7°Culet: NoneDepth 48.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $9,221 AUD|Low: $3,160 AUD|High: $11,913 AUD|Avg: $7,263 AUD|-22.6%
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$3,160 AUD
Retailer 2$6,298 AUD
Brilliant Earth$9,221 AUD

12 data points across 3 retailers

3 retailers$6,298 AUD to $9,221 AUD

Retailer 1
-
$3,160 AUD
$2,207 USD
Price last confirmed 9 days ago
Final sale: no returns
B
Retailer 2
-
$6,298 AUD
£3,463 GBP
View
Most Expensive
B
Brilliant Earth
21586412A · Nov 2
$9,221 AUD
$6,440 USD
View
2 more retailers have this diamond
Prices start from $6,298 AUDSave up to $2,924 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.

B
3.05ct Marquise
$6,298 AUD