CaratHunter
Plans
Cushion|Lab Grown|IGI

4.51ct I VVS2 Cushion Lab Grown Diamond

ID • I/VVS2 • IGI LG500144718

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG500144718

Diamond specifications and retailer prices

From €3,357 EUR
$3,750 USD
As of October 31, 2026
Save €10,272 EUR (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €31,560 EUR at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded I colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG500144718 or 500144718. Listed at 8 retailers as of October 31, 2026, with a 306% 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
I
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500144718
Dimensions9.35 × 9.02 × 5.88 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.35 mm9.02 mm4.51 ctI / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500144718
Side View
Table 64.0%Crown 40.6°Girdle: STK-VTKPavilion 31.4°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €31,560 EUR|Low: €3,357 EUR|High: €35,367 EUR|Avg: €16,963 EUR|-10.8%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2€3,357 EUR
Retailer 8€13,629 EUR
Retailer 6€14,314 EUR
Retailer 9€14,370 EUR
Retailer 5€14,675 EUR
Retailer 4€14,826 EUR
Retailer 10€15,918 EUR
Retailer 7€21,239 EUR
Retailer 3€23,414 EUR
Cape Diamonds€31,560 EUR

19 data points across 10 retailers

8 retailers€3,357 EUR to €13,629 EUR

B+
Cheapest Retailer
-
€3,357 EUR
$3,750 USD
B
Retailer 2
-
€13,629 EUR
$15,226 USD
View
Retailer 3
-
€14,314 EUR
$15,992 USD
View
Price under review
Final sale: no returns
Retailer 4
-
€14,675 EUR
$16,395 USD
View
Price under review
Retailer 5
-
€14,826 EUR
$16,564 USD
View
Price under review
Most Expensive
Cape Diamonds
cert_500144718 · Oct 29
€31,560 EUR
ZAR 569,608 ZAR
View
Price under review
5 more retailers have this diamond
Prices start from €3,357 EURSave up to €10,272 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.

B+
4.51ct Cushion
€3,357 EUR