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Round|Lab Grown|IGI

1.91ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG747570355

Shape and cutting style on the report: Round brilliant

Certificate IGI LG747570355

Diamond specifications and retailer prices

From £196 GBP
$262 USD
As of November 1, 2026
Save £1,088 GBP (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,284 GBP 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG747570355 or 747570355. Listed at 24 retailers as of October 31, 2026, with prices from £196 to £1,284, a £1,088 spread on the same certified stone. Brilliant Earth lists it at £1,284. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747570355
Dimensions8.11 × 8.07 × 4.79 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.11 mm8.07 mm1.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747570355
Side View
Table 59.0%Crown 33.2°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 59.3%

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: Nov 1
Current: £1,284 GBP|Low: £196 GBP|High: £1,829 GBP|Avg: £560 GBP|-29.8%
Brilliant Earth
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Retailer 22
November 1, 2026
Retailer 14£196 GBP
Retailer 11£219 GBP
Retailer 10£226 GBP
Retailer 8£242 GBP
Retailer 15£248 GBP
Retailer 3£327 GBP
Retailer 19£328 GBP
Retailer 16£384 GBP
Retailer 4£416 GBP
Retailer 18£442 GBP
Retailer 22£450 GBP
Retailer 17£462 GBP
Retailer 6£513 GBP
Retailer 5£563 GBP
Retailer 20£613 GBP
Retailer 21£750 GBP
Retailer 7£778 GBP
Retailer 12£816 GBP
Retailer 13£869 GBP
Retailer 9£952 GBP
Retailer 2£970 GBP
Brilliant Earth£1,284 GBP

31 data points across 22 retailers

24 retailers£196 GBP to £1,284 GBP

A
Cheapest Retailer
-
£196 GBP
$262 USD
A
Retailer 2
-
£219 GBP
$293 USD
View
Final sale: no returns
A
Retailer 3
-
£226 GBP
$303 USD
View
A
Retailer 4
-
£242 GBP
$324 USD
View
Retailer 5
-
£248 GBP
$332 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£327 GBP
$438 USD
View
A
Retailer 7
-
£328 GBP
$440 USD
View
A
Retailer 8
-
£384 GBP
View
A
Retailer 9
-
£416 GBP
ZAR 9,002 ZAR
View
A
Retailer 10
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£442 GBP
€564 EUR
View
A
Retailer 11
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£450 GBP
$603 USD
View
A
Retailer 12
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£462 GBP
View
A
Retailer 13
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£513 GBP
$687 USD
View
B+
Retailer 14
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£563 GBP
A$1,160 AUD
View
B+
Retailer 15
-
£613 GBP
$821 USD
View
B+
Retailer 16
-
£750 GBP
$1,005 USD
View
B+
Retailer 17
-
£778 GBP
$1,043 USD
View
B+
Retailer 18
-
£816 GBP
$1,094 USD
View
B
Retailer 19
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£869 GBP
$1,165 USD
View
B
Retailer 20
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£886 GBP
$1,187 USD
View
Retailer 21
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£896 GBP
A$1,848 AUD
View
Price last confirmed 158 days ago
B
Retailer 22
-
£952 GBP
$1,276 USD
View
B
Retailer 23
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£970 GBP
View
Most Expensive
B
Brilliant Earth
18296538A · Oct 31
£1,284 GBP
$1,720 USD
View
23 more retailers have this diamond
Prices start from £196 GBPSave up to £1,088 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
£196 GBP