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Cushion|Lab Grown|IGI

4.51ct F VVS2 Cushion Lab Grown Diamond

ID • F/VVS2 • IGI LG779638251

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG779638251

Diamond specifications and retailer prices

From €630 EUR
£557 GBP
As of November 2, 2026
Save €2,442 EUR (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €3,392 EUR at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG779638251 or 779638251. Listed at 18 retailers as of October 31, 2026, with a 388% 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

4.51
Carat
F
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779638251
Dimensions9.99 × 9.19 × 5.61 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.99 mm9.19 mm4.51 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779638251
Side View
Table 66.0%Crown 33.5°Girdle: STK-THKPavilion 33.2°Culet: NoneDepth 61.0%

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 2
Current: €1,131 EUR|Low: €630 EUR|High: €3,111 EUR|Avg: €1,578 EUR|+0.3%
Retailer 1
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 3, 2026
Retailer 7€630 EUR
Retailer 5€681 EUR
Retailer 2€706 EUR
Retailer 12€865 EUR
Retailer 13€1,009 EUR
Retailer 1€1,131 EUR
Retailer 9€1,143 EUR
Retailer 6€1,502 EUR
Retailer 11€1,513 EUR
Retailer 3€2,325 EUR
Retailer 4€2,408 EUR
Retailer 8€2,975 EUR
Retailer 10€3,073 EUR

36 data points across 13 retailers

18 retailers€630 EUR to €3,073 EUR

A
Cheapest Retailer
-
€630 EUR
£557 GBP
A
Retailer 2
-
€681 EUR
$764 USD
View
Final sale: no returns
Retailer 3
-
€706 EUR
$792 USD
View
Price last confirmed 18 days ago
A
Retailer 4
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€865 EUR
$970 USD
View
B+
Retailer 5
-
€1,009 EUR
$1,132 USD
View
A
Retailer 6
-
€1,096 EUR
$1,229 USD
View
A
Retailer 7
-
€1,131 EUR
£999 GBP
View
A
Retailer 8
-
€1,143 EUR
View
A
Retailer 9
-
€1,502 EUR
ZAR 27,224 ZAR
View
A
Retailer 10
-
€1,513 EUR
A$2,611 AUD
View
A
Retailer 11
-
€1,668 EUR
$1,871 USD
View
B+
Retailer 12
-
€2,201 EUR
£1,944 GBP
View
B+
Retailer 13
-
€2,325 EUR
$2,607 USD
View
B+
Retailer 14
-
€2,408 EUR
$2,701 USD
View
B+
Retailer 15
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€2,436 EUR
$2,732 USD
View
B+
Retailer 16
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€2,975 EUR
£2,627 GBP
View
B+
Retailer 17
-
€3,073 EUR
A$5,302 AUD
View
Most Expensive
Rare Carat
HS-61-53A_l_779638251 · Oct 19
€3,392 EUR
$3,805 USD
View
Price last confirmed 15 days ago
17 more retailers have this diamond
Prices start from €630 EURSave up to €2,442 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
4.51ct Cushion
€630 EUR