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Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG747588136

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG747588136

Diamond specifications and retailer prices

From $980 AUD
$687 USD
As of November 2, 2026
Save $9,008 AUD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $9,988 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 LG747588136 or 747588136. Listed at 25 retailers as of November 2, 2026, with prices from $980 to $9,988, a $9,008 spread on the same certified stone. Do Amore Diamonds lists it at $9,988. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747588136
Dimensions14.76 × 7.80 × 4.99 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.76 mm7.80 mm3.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747588136
Side View
Table 59.0%Crown 37.1°Girdle: STK-THKPavilion 38.7°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
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 2
Current: $8,704 AUD|Low: $942 AUD|High: $8,704 AUD|Avg: $3,045 AUD
Do Amore 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 4$942 AUD
Retailer 6$1,097 AUD
Retailer 3$1,137 AUD
Retailer 19$1,137 AUD
Retailer 18$1,320 AUD
Retailer 8$1,407 AUD
Retailer 7$1,607 AUD
Retailer 5$1,704 AUD
Retailer 2$1,924 AUD
Retailer 17$2,802 AUD
Retailer 14$2,836 AUD
Retailer 15$2,916 AUD
Retailer 16$3,781 AUD
Retailer 9$3,891 AUD
Retailer 10$3,893 AUD
Retailer 11$4,491 AUD
Retailer 12$4,708 AUD
Retailer 13$7,876 AUD
Do Amore Diamonds$8,704 AUD

42 data points across 19 retailers

25 retailers$980 AUD to $9,988 AUD

Retailer 1
-
$942 AUD
$660 USD
Price last confirmed 31 days ago
A
Retailer 2
-
$980 AUD
$687 USD
View
Retailer 3
-
$1,067 AUD
$748 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$1,097 AUD
$769 USD
View
Final sale: no returns
Retailer 5
-
$1,137 AUD
$797 USD
View
Price last confirmed 17 days ago
Retailer 6
-
$1,137 AUD
$797 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
$1,137 AUD
$797 USD
View
A
Retailer 8
-
$1,320 AUD
$925 USD
View
A
Retailer 9
-
$1,407 AUD
$986 USD
View
A
Retailer 10
-
$1,607 AUD
$1,126 USD
View
A
Retailer 11
-
$1,704 AUD
$1,194 USD
View
A
Retailer 12
-
$1,924 AUD
£1,062 GBP
View
B+
Retailer 13
-
$2,802 AUD
$1,964 USD
View
B+
Retailer 14
-
$2,836 AUD
View
B+
Retailer 15
-
$2,916 AUD
ZAR 33,014 ZAR
View
Retailer 16
-
$3,532 AUD
$2,475 USD
View
Price last confirmed 33 days ago
B+
Retailer 17
-
$3,532 AUD
$2,475 USD
View
B+
Retailer 18
-
$3,781 AUD
$2,650 USD
View
B
Retailer 19
-
$3,891 AUD
$2,727 USD
View
B
Retailer 20
-
$3,893 AUD
£2,148 GBP
View
B
Retailer 21
-
$4,491 AUD
$3,148 USD
View
B
Retailer 22
-
$4,708 AUD
£2,598 GBP
View
B
Retailer 23
-
$7,876 AUD
$5,520 USD
View
B
Retailer 24
-
$8,704 AUD
$6,100 USD
View
Most Expensive
B
Do Amore Diamonds
23-747588136 · Nov 2
$9,988 AUD
$7,000 USD
View
24 more retailers have this diamond
Prices start from $980 AUDSave up to $9,008 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
$980 AUD