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Marquise|Lab Grown|IGI

1.71ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG806630081

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG806630081

Diamond specifications and retailer prices

From €493 EUR
$549 USD
As of October 29, 2026
Save €3,558 EUR (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €4,051 EUR at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.71ct lab-grown marquise diamond

This 1.71ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG806630081 or 806630081. Listed at 17 retailers as of October 28, 2026, with prices from €493 to €4,051, a €3,558 spread on the same certified stone. Brilliant Earth lists it at €4,051. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG806630081
Dimensions12.75 × 6.21 × 3.72 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.75 mm6.21 mm1.71 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG806630081
Side View
Table 61.0%Crown 36.9°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 59.9%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: €950 EUR|Low: €493 EUR|High: €2,404 EUR|Avg: €1,284 EUR|+13.5%
Retailer 1
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 29, 2026
Retailer 9€493 EUR
Retailer 8€669 EUR
Retailer 14€737 EUR
Retailer 4€835 EUR
Retailer 3€912 EUR
Retailer 12€943 EUR
Retailer 1€950 EUR
Retailer 15€1,200 EUR
Retailer 7€1,307 EUR
Retailer 5€1,483 EUR
Retailer 10€1,729 EUR
Retailer 2€1,788 EUR
Retailer 13€1,796 EUR
Retailer 11€1,913 EUR
Retailer 6€2,327 EUR

20 data points across 15 retailers

17 retailers€493 EUR to €4,051 EUR

A
Cheapest Retailer
-
€493 EUR
$549 USD
Final sale: no returns
A
Retailer 2
-
€669 EUR
$745 USD
View
A
Retailer 3
-
€737 EUR
$820 USD
View
A
Retailer 4
-
€835 EUR
$930 USD
View
A
Retailer 5
-
€912 EUR
£799 GBP
View
A
Retailer 6
-
€943 EUR
ZAR 16,959 ZAR
View
A
Retailer 7
-
€950 EUR
View
A
Retailer 8
-
€1,200 EUR
$1,336 USD
View
A
Retailer 9
-
€1,307 EUR
A$2,239 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
€1,483 EUR
$1,651 USD
View
B+
Retailer 11
-
€1,729 EUR
SGD 2,601 SGD
View
B+
Retailer 12
-
€1,788 EUR
$1,991 USD
View
B+
Retailer 13
-
€1,796 EUR
$2,000 USD
View
B+
Retailer 14
-
€1,913 EUR
$2,130 USD
View
B+
Retailer 15
-
€2,327 EUR
£2,040 GBP
View
Price last confirmed 8 days ago
B+
Retailer 16
-
€2,575 EUR
A$4,411 AUD
View
Price last confirmed 20 days ago
Most Expensive
B
Brilliant Earth
20219477A · Oct 28
€4,051 EUR
$4,510 USD
View
16 more retailers have this diamond
Prices start from €493 EURSave up to €3,558 EUR

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
1.71ct Marquise
€493 EUR