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Marquise|Lab Grown|IGI

5.65ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG677525269

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG677525269

Diamond specifications and retailer prices

From €658 EUR
$738 USD
As of November 2, 2026
Save €4,428 EUR (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €5,086 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 5.65ct lab-grown marquise diamond

This 5.65ct lab-grown marquise sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG677525269 or 677525269. Listed at 14 retailers as of October 28, 2026, with prices from €658 to €5,086, a €4,428 spread on the same certified stone. Rare Carat lists it at €5,086. 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

5.65
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677525269
Dimensions18.06 × 9.20 × 5.94 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.06 mm9.20 mm5.65 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677525269
Side View
Table 60.0%Crown 37.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.6%

Caratlytics Score

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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: Nov 2
Current: €5,086 EUR|Low: €658 EUR|High: €8,158 EUR|Avg: €2,308 EUR
Rare Carat
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 13€658 EUR
Retailer 6€716 EUR
Retailer 14€764 EUR
Retailer 2€854 EUR
Retailer 17€902 EUR
Retailer 15€923 EUR
Retailer 16€1,136 EUR
Retailer 10€1,226 EUR
Retailer 5€1,238 EUR
Retailer 7€1,348 EUR
Retailer 12€1,881 EUR
Retailer 3€2,123 EUR
Retailer 4€2,147 EUR
Retailer 11€2,999 EUR
Rare Carat€5,086 EUR
Retailer 8€5,734 EUR
Retailer 9€8,158 EUR

6 data points across 17 retailers

14 retailers€658 EUR to €5,086 EUR

A
Cheapest Retailer
-
€658 EUR
$738 USD
A
Retailer 2
-
€716 EUR
$803 USD
View
A
Retailer 3
-
€764 EUR
$857 USD
View
A
Retailer 4
-
€854 EUR
£754 GBP
View
A
Retailer 5
-
€902 EUR
HK$7,900 HKD
View
A
Retailer 6
-
€923 EUR
$1,035 USD
View
A
Retailer 7
-
€1,136 EUR
$1,274 USD
View
A
Retailer 8
-
€1,226 EUR
£1,083 GBP
View
B+
Retailer 9
-
€1,238 EUR
$1,388 USD
View
B+
Retailer 10
-
€1,881 EUR
$2,110 USD
View
B
Retailer 11
-
€2,123 EUR
$2,381 USD
View
B
Retailer 12
-
€2,147 EUR
$2,408 USD
View
B
Retailer 13
-
€2,999 EUR
£2,649 GBP
View
Most Expensive
B
Rare Carat
KI2695252KF677 · Oct 28
€5,086 EUR
$5,705 USD
View
13 more retailers have this diamond
Prices start from €658 EURSave up to €4,428 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
5.65ct Marquise
€658 EUR