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Round|Lab Grown|IGI

5.91ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG807651601

Shape and cutting style on the report: Round brilliant

Certificate IGI LG807651601

Diamond specifications and retailer prices

From €664 EUR
$742 USD
As of October 29, 2026
Save €3,155 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,887 EUR at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 5.91ct lab-grown round diamond

This 5.91ct lab-grown round 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 LG807651601 or 807651601. Listed at 14 retailers as of October 29, 2026, with a 475% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.91
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807651601
Dimensions11.61 × 11.66 × 7.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.61 mm11.66 mm5.91 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807651601
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.2%

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: €4,887 EUR|Low: €662 EUR|High: €4,945 EUR|Avg: €2,242 EUR|-0.8%
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
October 30, 2026
Retailer 6€664 EUR
Retailer 15€722 EUR
Retailer 12€967 EUR
Retailer 3€1,207 EUR
Retailer 9€1,226 EUR
Retailer 7€1,336 EUR
Retailer 2€1,561 EUR
Retailer 13€1,897 EUR
Retailer 11€1,898 EUR
Retailer 4€2,165 EUR
Retailer 16€2,499 EUR
Retailer 8€2,963 EUR
Retailer 10€3,028 EUR
Retailer 5€3,332 EUR
Retailer 14€3,819 EUR
Rare Carat€4,887 EUR

31 data points across 16 retailers

14 retailers€664 EUR to €3,819 EUR

A
Cheapest Retailer
-
€664 EUR
$742 USD
A
Retailer 2
-
€722 EUR
$807 USD
View
Retailer 3
-
€967 EUR
£851 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
€1,207 EUR
$1,349 USD
View
A
Retailer 5
-
€1,226 EUR
View
A
Retailer 6
-
€1,561 EUR
A$2,683 AUD
View
B+
Retailer 7
-
€1,897 EUR
$2,119 USD
View
B+
Retailer 8
-
€1,898 EUR
$2,120 USD
View
B+
Retailer 9
-
€2,165 EUR
$2,419 USD
View
B+
Retailer 10
-
€2,499 EUR
$2,792 USD
View
B+
Retailer 11
-
€3,028 EUR
£2,664 GBP
View
Retailer 12
-
€3,332 EUR
SGD 5,030 SGD
View
Price last confirmed 17 days ago
B
Retailer 13
-
€3,819 EUR
$4,267 USD
View
Most Expensive
Rare Carat
LGRD50-85109 · Oct 18
€4,887 EUR
$5,460 USD
View
Price last confirmed 12 days ago
13 more retailers have this diamond
Prices start from €664 EURSave up to €3,155 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
5.91ct Round
€664 EUR