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Round|Lab Grown|IGI

1.91ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG655411900

Shape and cutting style on the report: Round brilliant

Certificate IGI LG655411900

Diamond specifications and retailer prices

From £285 GBP
$379 USD
As of October 29, 2026
Save £1,660 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,945 GBP at Rare Carat · As of October 25, 2026
View at Rare Carat

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 LG655411900 or 655411900. Listed at 19 retailers as of October 25, 2026, with prices from £285 to £1,945, a £1,660 spread on the same certified stone. Rare Carat lists it at £1,945. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655411900
Dimensions7.94 × 7.89 × 4.93 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
7.94 mm7.89 mm1.91 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655411900
Side View
Table 58.0%Crown 35.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.3%

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: £1,945 GBP|Low: £273 GBP|High: £1,982 GBP|Avg: £757 GBP|-1.9%
Rare Carat
Retailer 2
Retailer 3
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
October 29, 2026
Retailer 16£285 GBP
Retailer 5£318 GBP
Retailer 7£318 GBP
Retailer 3£353 GBP
Retailer 13£466 GBP
Retailer 15£484 GBP
Retailer 10£533 GBP
Retailer 6£549 GBP
Retailer 11£606 GBP
Retailer 12£633 GBP
Retailer 2£819 GBP
Retailer 14£990 GBP
Retailer 8£1,135 GBP
Retailer 4£1,322 GBP
Retailer 9£1,386 GBP
Rare Carat£1,945 GBP

41 data points across 16 retailers

19 retailers£285 GBP to £1,945 GBP

A
Cheapest Retailer
-
£285 GBP
$379 USD
A
Retailer 2
-
£318 GBP
$424 USD
View
A
Retailer 3
-
£318 GBP
$424 USD
View
Final sale: no returns
A
Retailer 4
-
£353 GBP
$470 USD
View
A
Retailer 5
-
£353 GBP
$470 USD
View
A
Retailer 6
-
£466 GBP
$620 USD
View
A
Retailer 7
-
£484 GBP
$645 USD
View
A
Retailer 8
-
£533 GBP
View
A
Retailer 9
-
£549 GBP
$731 USD
View
A
Retailer 10
-
£606 GBP
ZAR 13,045 ZAR
View
A
Retailer 11
-
£633 GBP
View
A
Retailer 12
-
£819 GBP
A$1,678 AUD
View
B+
Retailer 13
-
£990 GBP
$1,318 USD
View
B+
Retailer 14
-
£1,015 GBP
$1,352 USD
View
B+
Retailer 15
-
£1,135 GBP
$1,511 USD
View
B+
Retailer 16
-
£1,163 GBP
$1,549 USD
View
B+
Retailer 17
-
£1,322 GBP
$1,760 USD
View
B+
Retailer 18
-
£1,386 GBP
View
Most Expensive
B
Rare Carat
GD12326_l_655411900 · Oct 25
£1,945 GBP
$2,590 USD
View
18 more retailers have this diamond
Prices start from £285 GBPSave up to £1,660 GBP

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
£285 GBP