Marquise|Lab Grown|IGI

5.50ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG830675873

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830675873

Diamond specifications and retailer prices

From $1,535 USD
As of October 30, 2026
Save $4,110 USD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,430 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.5ct lab-grown marquise diamond

This 5.5ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG830675873 or 830675873. Listed at 10 retailers as of October 28, 2026, with a 268% 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

5.50
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830675873
Dimensions18.78 × 9.19 × 5.49 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.78 mm9.19 mm5.50 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830675873
Side View
Table 57.0%Crown 30°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,430 USD|Low: $1,535 USD|High: $6,430 USD|Avg: $3,512 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$1,535 USD
Retailer 3$1,686 USD
Retailer 5$1,820 USD
Retailer 4$2,588 USD
Retailer 6$3,731 USD
Retailer 8$3,807 USD
Retailer 10$4,354 USD
Retailer 7$5,146 USD
Retailer 9$5,645 USD
Brilliant Earth$6,430 USD

41 data points across 10 retailers

10 retailers$1,535 USD to $5,645 USD

B+
Cheapest Retailer
-
$1,535 USD
A
Retailer 2
-
$1,686 USD
£1,328 GBP
View
A
Retailer 3
-
$1,820 USD
€1,733 EUR
View
B+
Retailer 4
-
$2,588 USD
View
B+
Retailer 5
-
$3,731 USD
£2,938 GBP
View
B
Retailer 6
-
$3,807 USD
View
Retailer 7
-
$4,354 USD
A$6,699 AUD
View
Price last confirmed 22 days ago
B
Retailer 8
-
$5,146 USD
View
B
Retailer 9
-
$5,645 USD
View
Most Expensive
Brilliant Earth
22199715A · Oct 30
$6,430 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,535 USDSave up to $4,110 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.

A
5.50ct Marquise
$1,535 USD