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Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG715569166

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG715569166

Diamond specifications and retailer prices

From $1,239 AUD
$868 USD
As of November 1, 2026
Save $2,528 AUD (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,767 AUD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.51ct lab-grown marquise diamond

This 3.51ct 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 LG715569166 or 715569166. Listed at 8 retailers as of October 28, 2026, with prices from $1,239 to $3,767, a $2,528 spread on the same certified stone. Rare Carat lists it at $3,767. 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

3.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG715569166
Dimensions15.30 × 7.97 × 5.01 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.30 mm7.97 mm3.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG715569166
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.9%

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: $1,295 AUD|Low: $1,073 AUD|High: $5,722 AUD|Avg: $2,542 AUD|+0.5%
Retailer 1
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 8$1,239 AUD
Retailer 1$1,295 AUD
Retailer 2$1,329 AUD
Retailer 6$1,715 AUD
Retailer 11$1,763 AUD
Retailer 4$2,338 AUD
Retailer 7$2,584 AUD
Retailer 9$2,782 AUD
Retailer 5$2,899 AUD
Retailer 10$3,191 AUD
Retailer 3$3,748 AUD
Retailer 12$5,722 AUD

36 data points across 12 retailers

8 retailers$1,239 AUD to $3,767 AUD

B+
Cheapest Retailer
-
$1,239 AUD
$868 USD
A
Retailer 2
-
$1,295 AUD
£714 GBP
View
A
Retailer 3
-
$1,715 AUD
$1,202 USD
View
Retailer 4
-
$2,338 AUD
HK$12,800 HKD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
$2,584 AUD
$1,811 USD
View
B+
Retailer 6
-
$2,899 AUD
£1,600 GBP
View
B
Retailer 7
-
$3,191 AUD
$2,236 USD
View
Most Expensive
Rare Carat
673948_l_715569166 · Oct 28
$3,767 AUD
$2,640 USD
View
7 more retailers have this diamond
Prices start from $1,239 AUDSave up to $2,528 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
3.51ct Marquise
$1,239 AUD