Cushion|Lab Grown|IGI

4.05ct H VS1 Cushion Lab Grown Diamond

GD • H/VS1 • IGI LG840657039

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840657039

Diamond specifications and retailer prices

From €699 EUR
HK$6,100 HKD
As of November 1, 2026
Save €4,027 EUR (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,726 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG840657039 or 840657039. Listed at 18 retailers as of October 31, 2026, with prices from €699 to €4,726, a €4,027 spread on the same certified stone. Brilliant Earth lists it at €4,726. 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

4.05
Carat
H
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840657039
Dimensions11.28 × 8.05 × 5.14 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm8.05 mm4.05 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840657039
Side View
Table 65.0%Crown 34°Girdle: MED-STKPavilion 32.5°Culet: NoneDepth 63.9%

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: €932 EUR|Low: €579 EUR|High: €2,858 EUR|Avg: €1,522 EUR|+0.4%
Retailer 1
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Retailer 18
October 31, 2026
Retailer 4€585 EUR
Retailer 12€699 EUR
Retailer 10€716 EUR
Retailer 15€747 EUR
Retailer 18€929 EUR
Retailer 1€932 EUR
Retailer 16€996 EUR
Retailer 2€1,139 EUR
Retailer 5€1,279 EUR
Retailer 7€1,296 EUR
Retailer 11€1,450 EUR
Retailer 6€1,882 EUR
Retailer 8€1,947 EUR
Retailer 14€2,030 EUR
Retailer 17€2,065 EUR
Retailer 3€2,099 EUR
Retailer 9€2,801 EUR
Retailer 13€2,827 EUR

23 data points across 18 retailers

18 retailers€699 EUR to €4,726 EUR

A
Cheapest Retailer
-
€699 EUR
HK$6,100 HKD
Retailer 2
-
€716 EUR
£630 GBP
View
Price last confirmed 25 days ago
Retailer 3
-
€747 EUR
$835 USD
View
Price last confirmed 5 days ago
B+
Retailer 4
-
€929 EUR
$1,038 USD
View
A
Retailer 5
-
€932 EUR
View
B
Retailer 6
-
€996 EUR
$1,113 USD
View
B+
Retailer 7
-
€1,139 EUR
$1,273 USD
View
Retailer 8
-
€1,279 EUR
ZAR 23,087 ZAR
View
Price last confirmed 9 days ago
Retailer 9
-
€1,296 EUR
A$2,227 AUD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
€1,450 EUR
$1,620 USD
View
Retailer 11
-
€1,882 EUR
£1,656 GBP
View
Price last confirmed 7 days ago
B+
Retailer 12
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€1,947 EUR
$2,175 USD
View
B+
Retailer 13
-
€2,030 EUR
SGD 3,065 SGD
View
Retailer 14
-
€2,065 EUR
$2,307 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
€2,099 EUR
$2,346 USD
View
Retailer 16
-
€2,801 EUR
£2,464 GBP
View
Price last confirmed 12 days ago
B
Retailer 17
-
€2,827 EUR
$3,158 USD
View
Most Expensive
B
Brilliant Earth
21823092A · Oct 31
€4,726 EUR
$5,280 USD
View
17 more retailers have this diamond
Prices start from €699 EURSave up to €4,027 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
4.05ct Cushion
€699 EUR