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Marquise|Lab Grown|IGI

3.10ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG774641699

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG774641699

Diamond specifications and retailer prices

From $584 AUD
$409 USD
As of November 1, 2026
Save $2,556 AUD (81%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,030 AUD at Helzberg Diamonds · As of October 26, 2026
View at Helzberg Diamonds

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 LG774641699 or 774641699. Listed at 5 retailers as of October 28, 2026, with a 438% 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 angle36.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774641699
Dimensions15.32 × 7.42 × 4.77 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizePointed
Top View
15.32 mm7.42 mm3.10 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774641699
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 64.3%

Caratlytics Score

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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: $5,030 AUD|Low: $584 AUD|High: $5,030 AUD|Avg: $2,107 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 7$584 AUD
Retailer 12$1,007 AUD
Retailer 13$1,062 AUD
Retailer 10$1,092 AUD
Retailer 2$1,206 AUD
Retailer 3$1,358 AUD
Retailer 11$1,517 AUD
Retailer 4$1,735 AUD
Retailer 9$2,153 AUD
Retailer 5$2,645 AUD
Retailer 6$3,139 AUD
Retailer 8$4,423 AUD
Helzberg Diamonds$5,030 AUD

39 data points across 13 retailers

5 retailers$584 AUD to $3,139 AUD

A
Cheapest Retailer
-
$584 AUD
$409 USD
Final sale: no returns
A
Retailer 2
-
$1,206 AUD
£665 GBP
View
B
Retailer 3
-
$3,139 AUD
$2,200 USD
View
Retailer 4
-
$4,423 AUD
$3,100 USD
View
Price last confirmed 15 days ago
Most Expensive
Helzberg Diamonds
ZXZNNKMKHMPP · Oct 26
$5,030 AUD
$3,525 USD
View
Price last confirmed 8 days ago
4 more retailers have this diamond
Prices start from $584 AUDSave up to $2,556 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
$584 AUD