Marquise|Lab Grown|IGI

6.83ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG598343686

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG598343686

Diamond specifications and retailer prices

From €993 EUR
$1,109 USD
As of October 30, 2026
Save €4,141 EUR (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €8,817 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 6.83ct lab-grown marquise diamond

This 6.83ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG598343686 or 598343686. Listed at 9 retailers as of October 28, 2026, with a 417% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.83
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598343686
Dimensions20.19 × 9.92 × 5.99 mm
L/W Ratio2.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
20.19 mm9.92 mm6.83 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598343686
Side View
Table 62.0%Crown 35°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.4%

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: €8,817 EUR|Low: €977 EUR|High: €9,953 EUR|Avg: €4,184 EUR|-7.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 8€993 EUR
Retailer 6€1,079 EUR
Retailer 10€1,831 EUR
Retailer 4€1,835 EUR
Retailer 7€2,335 EUR
Retailer 9€2,382 EUR
Retailer 11€2,773 EUR
Retailer 2€4,105 EUR
Retailer 5€5,133 EUR
Do Amore Diamonds€8,817 EUR
Retailer 3€9,953 EUR

18 data points across 11 retailers

9 retailers€993 EUR to €5,133 EUR

A
Cheapest Retailer
-
€993 EUR
$1,109 USD
A
Retailer 2
-
€1,079 EUR
$1,206 USD
View
B+
Retailer 3
-
€1,831 EUR
$2,046 USD
View
B+
Retailer 4
-
€1,835 EUR
$2,050 USD
View
B+
Retailer 5
-
€2,335 EUR
$2,609 USD
View
B+
Retailer 6
-
€2,382 EUR
$2,661 USD
View
B
Retailer 7
-
€4,105 EUR
£3,611 GBP
View
B
Retailer 8
-
€5,133 EUR
$5,735 USD
View
Most Expensive
Do Amore Diamonds
27-7B18349BC · Oct 31
€8,817 EUR
$9,850 USD
View
Price under review
8 more retailers have this diamond
Prices start from €993 EURSave up to €4,141 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
6.83ct Marquise
€993 EUR