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Cushion|Lab Grown|IGI

3.51ct I VS1 Cushion Lab Grown Diamond

VG • I/VS1 • IGI LG628474188

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG628474188

Diamond specifications and retailer prices

From €416 EUR
$465 USD
As of October 31, 2026
Save €1,741 EUR (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,157 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG628474188 or 628474188. Listed at 14 retailers as of October 31, 2026, with prices from €416 to €2,157, a €1,741 spread on the same certified stone. Brilliant Earth lists it at €2,157. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.51
Carat
I
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628474188
Dimensions10.01 × 7.63 × 5.42 mm
L/W Ratio1.31
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
10.01 mm7.63 mm3.51 ctI / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628474188
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 71.0%

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: Oct 31
Current: €2,157 EUR|Low: €311 EUR|High: €3,518 EUR|Avg: €1,211 EUR|-38.7%
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
October 31, 2026
Retailer 13€416 EUR
Retailer 11€461 EUR
Retailer 7€716 EUR
Retailer 2€720 EUR
Retailer 12€728 EUR
Retailer 3€748 EUR
Retailer 5€917 EUR
Retailer 8€1,000 EUR
Retailer 6€1,106 EUR
Retailer 14€1,468 EUR
Retailer 4€1,512 EUR
Retailer 9€1,695 EUR
Retailer 10€1,804 EUR
Brilliant Earth€2,157 EUR

30 data points across 14 retailers

14 retailers€416 EUR to €2,157 EUR

A
Cheapest Retailer
-
€416 EUR
$465 USD
Final sale: no returns
A
Retailer 2
-
€461 EUR
$515 USD
View
B+
Retailer 3
-
€716 EUR
$800 USD
View
A
Retailer 4
-
€720 EUR
View
B+
Retailer 5
-
€728 EUR
$813 USD
View
B+
Retailer 6
-
€748 EUR
$836 USD
View
B+
Retailer 7
-
€917 EUR
$1,024 USD
View
A
Retailer 8
-
€1,000 EUR
ZAR 18,054 ZAR
View
B+
Retailer 9
-
€1,468 EUR
SGD 2,216 SGD
View
B+
Retailer 10
-
€1,512 EUR
$1,689 USD
View
B+
Retailer 11
-
€1,695 EUR
£1,491 GBP
View
Retailer 12
-
€1,793 EUR
$2,003 USD
View
Price last confirmed 52 days ago
B+
Retailer 13
-
€1,804 EUR
$2,015 USD
View
Most Expensive
B
Brilliant Earth
21584560A · Oct 31
€2,157 EUR
$2,410 USD
View
13 more retailers have this diamond
Prices start from €416 EURSave up to €1,741 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
€416 EUR