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Cushion|Lab Grown|IGI

3.51ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG813654337

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG813654337

Diamond specifications and retailer prices

From €793 EUR
$889 USD
As of November 1, 2026
Save €4,201 EUR (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €4,993 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG813654337 or 813654337. Listed at 21 retailers as of October 27, 2026, with prices from €793 to €4,993, a €4,201 spread on the same certified stone. Queensmith lists it at €4,993. 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
F
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813654337
Dimensions8.90 × 8.68 × 5.56 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.90 mm8.68 mm3.51 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813654337
Side View
Table 62.0%Crown 32.9°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 64.1%

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: €1,797 EUR|Low: €793 EUR|High: €4,672 EUR|Avg: €2,060 EUR|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
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Retailer 19
November 2, 2026
Retailer 8€793 EUR
Retailer 12€952 EUR
Retailer 3€990 EUR
Retailer 6€1,168 EUR
Retailer 9€1,175 EUR
Retailer 16€1,245 EUR
Retailer 13€1,249 EUR
Retailer 1€1,797 EUR
Retailer 18€1,854 EUR
Retailer 19€1,906 EUR
Retailer 7€2,019 EUR
Retailer 4€2,390 EUR
Retailer 5€2,554 EUR
Retailer 10€2,754 EUR
Retailer 11€2,839 EUR
Retailer 14€3,078 EUR
Retailer 17€3,379 EUR
Retailer 2€3,553 EUR
Retailer 15€4,672 EUR

27 data points across 19 retailers

21 retailers€793 EUR to €4,993 EUR

A
Cheapest Retailer
-
€793 EUR
$889 USD
Final sale: no returns
Retailer 2
-
€853 EUR
$957 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
€952 EUR
£841 GBP
View
A
Retailer 4
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€990 EUR
$1,110 USD
View
A
Retailer 5
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€1,168 EUR
$1,310 USD
View
A
Retailer 6
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€1,175 EUR
$1,318 USD
View
A
Retailer 7
-
€1,245 EUR
View
A
Retailer 8
-
€1,249 EUR
£1,103 GBP
View
B+
Retailer 9
-
€1,797 EUR
$2,015 USD
View
B+
Retailer 10
-
€1,854 EUR
A$3,199 AUD
View
B+
Retailer 11
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€1,906 EUR
ZAR 34,540 ZAR
View
B+
Retailer 12
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€2,019 EUR
$2,264 USD
View
B+
Retailer 13
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€2,390 EUR
$2,681 USD
View
B
Retailer 14
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€2,554 EUR
£2,256 GBP
View
B
Retailer 15
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€2,754 EUR
$3,088 USD
View
B
Retailer 16
-
€2,839 EUR
$3,184 USD
View
B
Retailer 17
-
€3,078 EUR
£2,718 GBP
View
B
Retailer 18
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€3,379 EUR
A$5,830 AUD
View
B
Retailer 19
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€3,553 EUR
$3,985 USD
View
B
Retailer 20
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€4,672 EUR
$5,240 USD
View
Most Expensive
B
Queensmith
LG813654337 · Oct 27
€4,993 EUR
£4,410 GBP
View
20 more retailers have this diamond
Prices start from €793 EURSave up to €4,201 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 Cushion
€793 EUR