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Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG801635337

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801635337

Diamond specifications and retailer prices

From €440 EUR
$494 USD
As of November 1, 2026
Save €2,493 EUR (85%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €2,933 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG801635337 or 801635337. Listed at 25 retailers as of October 31, 2026, with prices from €440 to €2,933, a €2,493 spread on the same certified stone. Brilliant Earth lists it at €2,933. 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
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801635337
Dimensions15.81 × 8.02 × 4.74 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.81 mm8.02 mm3.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801635337
Side View
Table 63.0%Crown 34.6°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 59.1%

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: €2,933 EUR|Low: €437 EUR|High: €3,031 EUR|Avg: €1,186 EUR|-3.2%
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
Retailer 14
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Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 17€440 EUR
Retailer 9€455 EUR
Retailer 6€564 EUR
Retailer 10€564 EUR
Retailer 8€651 EUR
Retailer 2€655 EUR
Retailer 13€771 EUR
Retailer 12€806 EUR
Retailer 5€895 EUR
Retailer 14€1,070 EUR
Retailer 18€1,191 EUR
Retailer 4€1,224 EUR
Retailer 7€1,320 EUR
Retailer 16€1,598 EUR
Retailer 11€1,751 EUR
Retailer 15€1,825 EUR
Retailer 3€2,367 EUR
Brilliant Earth€2,933 EUR

37 data points across 18 retailers

25 retailers€440 EUR to €2,933 EUR

A
Cheapest Retailer
-
€440 EUR
$494 USD
Final sale: no returns
A
Retailer 2
-
€455 EUR
$510 USD
View
Retailer 3
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€455 EUR
$510 USD
View
Price last confirmed 25 days ago
Retailer 4
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€455 EUR
$510 USD
View
Price last confirmed 16 days ago
Retailer 5
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€455 EUR
$510 USD
View
Price last confirmed 12 days ago
Retailer 6
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€509 EUR
$571 USD
View
Price last confirmed 8 days ago
Retailer 7
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€509 EUR
$571 USD
View
Price last confirmed 34 days ago
Retailer 8
-
€556 EUR
$624 USD
View
Price last confirmed 38 days ago
Retailer 9
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€564 EUR
$633 USD
View
Price last confirmed 30 days ago
Retailer 10
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€564 EUR
$633 USD
View
Price last confirmed 17 days ago
A
Retailer 11
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€651 EUR
$730 USD
View
B+
Retailer 12
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€655 EUR
$735 USD
View
A
Retailer 13
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€771 EUR
$865 USD
View
A
Retailer 14
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€806 EUR
£712 GBP
View
A
Retailer 15
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€1,070 EUR
$1,200 USD
View
A
Retailer 16
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€1,191 EUR
A$2,055 AUD
View
A
Retailer 17
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€1,224 EUR
ZAR 22,184 ZAR
View
B+
Retailer 18
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€1,320 EUR
$1,480 USD
View
Retailer 19
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€1,484 EUR
$1,664 USD
View
Price last confirmed 33 days ago
Retailer 20
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€1,484 EUR
$1,664 USD
View
Price last confirmed 8 days ago
B+
Retailer 21
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€1,598 EUR
$1,792 USD
View
B+
Retailer 22
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€1,751 EUR
$1,964 USD
View
B+
Retailer 23
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€1,825 EUR
$2,047 USD
View
B
Retailer 24
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€2,367 EUR
£2,090 GBP
View
Most Expensive
B
Brilliant Earth
20042804A · Oct 31
€2,933 EUR
$3,290 USD
View
24 more retailers have this diamond
Prices start from €440 EURSave up to €2,493 EUR

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
€440 EUR