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Cushion|Lab Grown|IGI

5.59ct I VS1 Cushion Lab Grown Diamond

GD • I/VS1 • IGI LG604315411

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG604315411

Diamond specifications and retailer prices

From $1,131 USD
As of November 1, 2026
Save $2,119 USD (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,250 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.59ct lab-grown cushion diamond

This 5.59ct lab-grown cushion sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG604315411 or 604315411. Listed at 12 retailers as of October 31, 2026, with prices from $1,131 to $3,250, a $2,119 spread on the same certified stone. Brilliant Earth lists it at $3,250. 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

5.59
Carat
I
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604315411
Dimensions10.43 × 10.29 × 6.74 mm
L/W Ratio1.01
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
10.43 mm10.29 mm5.59 ctI / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604315411
Side View
Table 61.0%Crown 36.6°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 65.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $3,250 USD|Low: $664 USD|High: $3,353 USD|Avg: $1,747 USD|-3.0%
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
Retailer 15
October 31, 2026
Retailer 15$664 USD
Retailer 4$787 USD
Retailer 7$876 USD
Retailer 3$890 USD
Retailer 14$1,131 USD
Retailer 8$1,135 USD
Retailer 2$1,158 USD
Retailer 12$1,185 USD
Retailer 9$1,385 USD
Retailer 5$2,149 USD
Retailer 13$2,380 USD
Retailer 11$2,613 USD
Retailer 6$2,641 USD
Retailer 10$3,212 USD
Brilliant Earth$3,250 USD

28 data points across 15 retailers

12 retailers$1,131 USD to $3,250 USD

Retailer 1
-
$787 USD
Price last confirmed 21 days ago
Retailer 2
-
$890 USD
£701 GBP
View
Price last confirmed 21 days ago
B
Retailer 3
-
$1,131 USD
View
B+
Retailer 4
-
$1,135 USD
View
B+
Retailer 5
-
$1,158 USD
€1,103 EUR
View
B+
Retailer 6
-
$1,185 USD
View
Retailer 7
-
$1,385 USD
ZAR 22,378 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,149 USD
£1,692 GBP
View
B+
Retailer 9
-
$2,380 USD
View
B+
Retailer 10
-
$2,613 USD
View
B
Retailer 11
-
$3,212 USD
£2,529 GBP
View
Most Expensive
B
Brilliant Earth
8399745A · Oct 31
$3,250 USD
View
11 more retailers have this diamond
Prices start from $1,131 USDSave up to $2,119 USD

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+
5.59ct Cushion
$1,131 USD