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Marquise|Lab Grown|IGI

5.05ct E SI1 Marquise Lab Grown Diamond

GD • E/SI1 • IGI LG650491267

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG650491267

Diamond specifications and retailer prices

From $799 USD
As of October 29, 2026
Save $3,136 USD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,935 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 5.05ct lab-grown marquise diamond

This 5.05ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG650491267 or 650491267. Listed at 17 retailers as of October 28, 2026, with prices from $799 to $3,935, a $3,136 spread on the same certified stone. Rare Carat lists it at $3,935. 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

5.05
Carat
E
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650491267
Dimensions18.59 × 8.92 × 5.37 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.59 mm8.92 mm5.05 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650491267
Side View
Table 58.0%Crown 32.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.2%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $3,935 USD|Low: $570 USD|High: $7,630 USD|Avg: $2,233 USD|-9.2%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 12$799 USD
Retailer 6$1,005 USD
Retailer 11$1,284 USD
Retailer 8$1,321 USD
Retailer 2$1,328 USD
Retailer 10$1,344 USD
Retailer 7$2,040 USD
Retailer 3$2,063 USD
Retailer 4$2,702 USD
Retailer 5$3,270 USD
Rare Carat$3,935 USD
Retailer 9$7,630 USD

43 data points across 12 retailers

17 retailers$799 USD to $3,935 USD

Retailer 1
-
$685 USD
Price last confirmed 27 days ago
Retailer 2
-
$777 USD
View
Price last confirmed 31 days ago
B+
Retailer 3
-
$799 USD
View
Final sale: no returns
Retailer 4
-
$817 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$828 USD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
$1,005 USD
View
B+
Retailer 7
-
$1,284 USD
View
B+
Retailer 8
-
$1,328 USD
£1,046 GBP
View
B
Retailer 9
-
$1,344 USD
View
Retailer 10
-
$1,796 USD
View
Price last confirmed 22 days ago
B
Retailer 11
-
$2,040 USD
View
B
Retailer 12
-
$2,063 USD
View
Retailer 13
-
$2,329 USD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$2,702 USD
View
B
Retailer 15
-
$2,855 USD
View
B
Retailer 16
-
$3,270 USD
£2,575 GBP
View
Most Expensive
B
Rare Carat
LM-0145_l_650491267 · Oct 28
$3,935 USD
View
16 more retailers have this diamond
Prices start from $799 USDSave up to $3,136 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+
5.05ct Marquise
$799 USD