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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 $2,185 AUD
$1,535 USD
As of October 30, 2026
Save $6,969 AUD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,154 AUD 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 30, 2026, with prices from $2,185 to $9,154, a $6,969 spread on the same certified stone. Brilliant Earth lists it at $9,154. 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
Colour
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: $9,154 AUD|Low: $2,185 AUD|High: $9,154 AUD|Avg: $4,987 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3$2,185 AUD
Retailer 2$2,401 AUD
Retailer 5$2,590 AUD
Retailer 4$3,684 AUD
Retailer 6$5,312 AUD
Retailer 8$5,420 AUD
Retailer 10$6,199 AUD
Retailer 7$7,326 AUD
Retailer 9$8,036 AUD
Brilliant Earth$9,154 AUD

41 data points across 10 retailers

10 retailers$2,185 AUD to $9,154 AUD

B+
Cheapest Retailer
-
$2,185 AUD
$1,535 USD
A
Retailer 2
-
$2,401 AUD
£1,328 GBP
View
A
Retailer 3
-
$2,590 AUD
€1,733 EUR
View
B+
Retailer 4
-
$3,684 AUD
$2,588 USD
View
B+
Retailer 5
-
$5,312 AUD
£2,938 GBP
View
B
Retailer 6
-
$5,420 AUD
$3,807 USD
View
Retailer 7
-
$6,199 AUD
View
Price last confirmed 23 days ago
B
Retailer 8
-
$7,326 AUD
$5,146 USD
View
B
Retailer 9
-
$8,036 AUD
$5,645 USD
View
Most Expensive
B
Brilliant Earth
22199715A · Oct 30
$9,154 AUD
$6,430 USD
View
9 more retailers have this diamond
Prices start from $2,185 AUDSave up to $6,969 AUD

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
$2,185 AUD