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Round|Lab Grown|IGI

1.91ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG640491565

Certificate IGI LG640491565

Diamond specifications and retailer prices

From $589 USD
Save $4,851 USD (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,440 USD at Brilliant Earth
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 23 retailers, with prices from $589 to $5,440 at Brilliant Earth, a $4,851 spread on the same certified stone. 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

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

Price History

Last verified: Oct 1
Current: $5,440 USD|Low: $589 USD|High: $5,440 USD|Avg: $1,795 USD|+0.2%
Brilliant Earth
Retailer 2
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Retailer 23
October 1, 2026
Retailer 2$589 USD
Retailer 19$686 USD
Retailer 6$687 USD
Retailer 12$751 USD
Retailer 14$760 USD
Retailer 18$890 USD
Retailer 4$985 USD
Retailer 9$1,020 USD
Retailer 15$1,071 USD
Retailer 13$1,138 USD
Retailer 17$1,153 USD
Retailer 21$1,155 USD
Retailer 3$1,281 USD
Retailer 10$1,433 USD
Retailer 16$1,493 USD
Retailer 8$2,000 USD
Retailer 23$2,066 USD
Retailer 11$2,458 USD
Retailer 20$2,512 USD
Retailer 7$2,540 USD
Retailer 5$2,755 USD
Retailer 22$3,341 USD
Brilliant Earth$5,440 USD

38 data points across 23 retailers

23 retailers$589 USD to $5,440 USD

A
Cheapest Retailer
-
$589 USD
A
Retailer 2
-
$686 USD
View
A
Retailer 3
-
$687 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$751 USD
View
A
Retailer 5
-
$760 USD
View
A
Retailer 6
-
$890 USD
View
A
Retailer 7
-
$985 USD
View
A
Retailer 8
-
$1,020 USD
View
A
Retailer 9
-
$1,071 USD
A$1,648 AUD
View
A
Retailer 10
-
$1,138 USD
€1,084 EUR
View
A
Retailer 11
-
$1,153 USD
£908 GBP
View
A
Retailer 12
-
$1,157 USD
£911 GBP
View
A
Retailer 13
-
$1,281 USD
ZAR 20,699 ZAR
View
B+
Retailer 14
-
$1,433 USD
View
B+
Retailer 15
-
$1,493 USD
View
Price last confirmed 21 days ago
B+
Retailer 16
-
$2,000 USD
View
B+
Retailer 17
-
$2,066 USD
A$3,179 AUD
View
B
Retailer 18
-
$2,458 USD
View
B
Retailer 19
-
$2,512 USD
View
B
Retailer 20
-
$2,540 USD
View
B
Retailer 21
-
$2,755 USD
View
B
Retailer 22
-
$3,341 USD
£2,631 GBP
View
Most Expensive
B
Brilliant Earth
11460987A · Oct 1
$5,440 USD
View
22 more retailers have this diamond
Prices start from $589 USDSave up to $4,851 USD

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.

A
1.91ct Round
$589 USD