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Round|Lab Grown|IGI

1.91ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG640491565

Shape and cutting style on the report: Round brilliant

Certificate IGI LG640491565

Diamond specifications and retailer prices

From €549 EUR
$613 USD
As of October 29, 2026
Save €4,177 EUR (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €4,726 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.91ct lab-grown round diamond

This 1.91ct lab-grown round 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 LG640491565 or 640491565. Listed at 24 retailers as of October 29, 2026, with prices from €549 to €4,726, a €4,177 spread on the same certified stone. Brilliant Earth lists it at €4,726. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640491565
Dimensions7.88 × 7.93 × 4.92 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.88 mm7.93 mm1.91 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640491565
Side View
Table 58.0%Crown 35.8°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

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: Oct 29
Current: €4,726 EUR|Low: €527 EUR|High: €4,726 EUR|Avg: €1,596 EUR
Brilliant Earth
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
November 1, 2026
Retailer 6€549 EUR
Retailer 8€680 EUR
Retailer 3€797 EUR
Retailer 7€913 EUR
Retailer 15€959 EUR
Retailer 2€1,023 EUR
Retailer 10€1,035 EUR
Retailer 9€1,063 EUR
Retailer 13€1,170 EUR
Retailer 12€1,585 EUR
Retailer 4€1,689 EUR
Retailer 11€1,798 EUR
Retailer 5€2,068 EUR
Retailer 16€2,421 EUR
Retailer 14€2,959 EUR
Brilliant Earth€4,726 EUR

31 data points across 16 retailers

24 retailers€549 EUR to €4,726 EUR

A
Cheapest Retailer
-
€549 EUR
$613 USD
A
Retailer 2
-
€614 EUR
$686 USD
View
Final sale: no returns
A
Retailer 3
-
€615 EUR
$687 USD
View
A
Retailer 4
-
€680 EUR
$760 USD
View
Retailer 5
-
€680 EUR
$760 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
€797 EUR
$890 USD
View
A
Retailer 7
-
€882 EUR
$985 USD
View
A
Retailer 8
-
€913 EUR
$1,020 USD
View
A
Retailer 9
-
€959 EUR
A$1,648 AUD
View
A
Retailer 10
-
€1,023 EUR
£900 GBP
View
A
Retailer 11
-
€1,035 EUR
View
A
Retailer 12
-
€1,063 EUR
£935 GBP
View
A
Retailer 13
-
€1,170 EUR
ZAR 21,114 ZAR
View
B+
Retailer 14
-
€1,283 EUR
$1,433 USD
View
B+
Retailer 15
-
€1,585 EUR
A$2,725 AUD
View
B+
Retailer 16
-
€1,689 EUR
$1,887 USD
View
B+
Retailer 17
-
€1,790 EUR
$2,000 USD
View
B+
Retailer 18
-
€1,798 EUR
A$3,091 AUD
View
B+
Retailer 19
-
€2,068 EUR
$2,310 USD
View
B
Retailer 20
-
€2,200 EUR
$2,458 USD
View
B
Retailer 21
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€2,249 EUR
$2,512 USD
View
Retailer 22
-
€2,421 EUR
$2,705 USD
View
Price last confirmed 7 days ago
B
Retailer 23
-
€2,959 EUR
£2,603 GBP
View
Most Expensive
B
Brilliant Earth
11460987A · Oct 31
€4,726 EUR
$5,280 USD
View
23 more retailers have this diamond
Prices start from €549 EURSave up to €4,177 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
1.91ct Round
€549 EUR