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Cushion|Lab Grown|IGI

5.50ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG825699745

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG825699745

Diamond specifications and retailer prices

From $4,194 USD
€3,994 EUR
As of October 29, 2026
Save $2,696 USD (39%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,890 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.5ct lab-grown cushion diamond

This 5.5ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG825699745 or 825699745. Listed at 4 retailers as of October 29, 2026, with prices from $4,194 to $6,890, a $2,696 spread on the same certified stone. Brilliant Earth lists it at $6,890. 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

5.50
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825699745
Dimensions11.60 × 9.09 × 6.38 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.60 mm9.09 mm5.50 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825699745
Side View
Table 56.0%Crown 43.4°Girdle: STK-THKPavilion 41.4°Culet: LargeDepth 70.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $6,890 USD|Low: $3,762 USD|High: $13,000 USD|Avg: $6,126 USD|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 4$3,762 USD
Retailer 2$4,194 USD
Retailer 3$6,672 USD
Brilliant Earth$6,890 USD

8 data points across 4 retailers

4 retailers$4,194 USD to $6,890 USD

Retailer 1
-
$3,762 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$4,194 USD
€3,994 EUR
View
B
Retailer 3
-
$6,672 USD
View
Most Expensive
B
Brilliant Earth
21728688A · Oct 30
$6,890 USD
View
3 more retailers have this diamond
Prices start from $4,194 USDSave up to $2,696 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+
5.50ct Cushion
$4,194 USD