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Marquise|Lab Grown|IGI

3.50ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG752523278

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG752523278

Diamond specifications and retailer prices

From $2,160 AUD
CA$2,103 CAD
As of November 2, 2026
Save $956 AUD (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,116 AUD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.5ct lab-grown marquise diamond

This 3.5ct 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 LG752523278 or 752523278. Listed at 2 retailers as of November 1, 2026, with prices from $2,160 to $3,116, a $956 spread on the same certified stone. The Diamond Guys lists it at $3,116. 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

3.50
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752523278
Dimensions16.38 × 7.80 × 4.87 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizePointed
Top View
16.38 mm7.80 mm3.50 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752523278
Side View
Table 63.0%Crown 35°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,784 AUD|Low: $758 AUD|High: $5,130 AUD|Avg: $1,950 AUD|-21.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
The Diamond Guys
August 3, 2026
Retailer 6$951 AUD
Retailer 3$1,006 AUD
Retailer 4$1,025 AUD
Retailer 8$1,351 AUD
Retailer 12$1,390 AUD
Retailer 14$1,534 AUD
Retailer 11$1,774 AUD
Retailer 1$1,784 AUD
Retailer 5$2,088 AUD
Retailer 9$2,160 AUD
Retailer 10$2,654 AUD
Retailer 2$2,888 AUD
The Diamond Guys$3,116 AUD
Retailer 7$4,663 AUD
Retailer 13$4,923 AUD

57 data points across 15 retailers

2 retailers$2,160 AUD to $3,116 AUD

B+
Cheapest Retailer
-
$2,160 AUD
CA$2,103 CAD
Most Expensive
B
The Diamond Guys
1958037485 · Nov 1
$3,116 AUD
$2,184 USD
View
1 more retailer has this diamond
Prices start from $2,160 AUDSave up to $956 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+
3.50ct Marquise
$2,160 AUD