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Marquise|Lab Grown|IGI

3.10ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG774630755

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG774630755

Diamond specifications and retailer prices

From $609 AUD
$427 USD
As of November 1, 2026
Save $3,522 AUD (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,523 AUD at Brilliant Earth · As of October 6, 2026
View at Brilliant Earth

About this 3.1ct lab-grown marquise diamond

This 3.1ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG774630755 or 774630755. Listed at 6 retailers as of November 1, 2026, with a 578% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.10
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774630755
Dimensions15.45 × 7.42 × 4.70 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizePointed
Top View
15.45 mm7.42 mm3.10 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774630755
Side View
Table 61.0%Crown 35.7°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 63.3%

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: $4,523 AUD|Low: $609 AUD|High: $4,652 AUD|Avg: $1,986 AUD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 6$609 AUD
Retailer 9$873 AUD
Retailer 3$1,062 AUD
Retailer 12$1,092 AUD
Retailer 10$1,236 AUD
Retailer 4$1,358 AUD
Retailer 13$1,517 AUD
Retailer 5$1,735 AUD
Retailer 11$2,153 AUD
Retailer 2$2,230 AUD
Retailer 7$3,104 AUD
Retailer 8$4,131 AUD
Brilliant Earth$4,523 AUD

24 data points across 13 retailers

6 retailers$609 AUD to $4,131 AUD

A
Cheapest Retailer
-
$609 AUD
$427 USD
Final sale: no returns
B+
Retailer 2
-
$873 AUD
$612 USD
View
B+
Retailer 3
-
$2,230 AUD
$1,563 USD
View
B+
Retailer 4
-
$3,104 AUD
$2,175 USD
View
B
Retailer 5
-
$4,131 AUD
$2,895 USD
View
Most Expensive
Brilliant Earth
19396307A · Oct 6
$4,523 AUD
$3,170 USD
View
Price last confirmed 27 days ago
5 more retailers have this diamond
Prices start from $609 AUDSave up to $3,522 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
3.10ct Marquise
$609 AUD