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Round|Lab Grown|IGI

1.91ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG833671684

Shape and cutting style on the report: Round brilliant

Certificate IGI LG833671684

Diamond specifications and retailer prices

From £267 GBP
HK$2,800 HKD
As of November 1, 2026
Save £1,083 GBP (80%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,351 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 LG833671684 or 833671684. Listed at 24 retailers as of October 31, 2026, with prices from £267 to £1,351, a £1,083 spread on the same certified stone. Brilliant Earth lists it at £1,351. 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 angle34.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833671684
Dimensions7.99 × 7.92 × 4.88 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.99 mm7.92 mm1.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833671684
Side View
Table 59.0%Crown 34.6°Girdle: MediumPavilion 41°Culet: NoneDepth 61.3%

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: £1,299 GBP|Low: £219 GBP|High: £1,478 GBP|Avg: £655 GBP|-12.1%
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 9£219 GBP
Retailer 4£267 GBP
Retailer 16£366 GBP
Retailer 2£381 GBP
Retailer 17£385 GBP
Retailer 6£402 GBP
Retailer 3£409 GBP
Retailer 18£459 GBP
Retailer 10£513 GBP
Retailer 20£568 GBP
Retailer 13£606 GBP
Retailer 15£773 GBP
Retailer 12£816 GBP
Retailer 5£869 GBP
Retailer 11£896 GBP
Retailer 7£952 GBP
Retailer 19£972 GBP
Retailer 14£988 GBP
Retailer 8£1,037 GBP
Brilliant Earth£1,299 GBP

38 data points across 20 retailers

24 retailers£267 GBP to £1,351 GBP

Retailer 1
-
£197 GBP
$264 USD
Price last confirmed 39 days ago
Retailer 2
-
£229 GBP
$307 USD
View
Price last confirmed 40 days ago
Retailer 3
-
£242 GBP
$324 USD
View
Price last confirmed 39 days ago
A
Retailer 4
-
£267 GBP
HK$2,800 HKD
View
A
Retailer 5
-
£366 GBP
$490 USD
View
A
Retailer 6
-
£381 GBP
€486 EUR
View
A
Retailer 7
-
£385 GBP
View
B+
Retailer 8
-
£402 GBP
$539 USD
View
Retailer 9
-
£409 GBP
ZAR 8,861 ZAR
View
Price last confirmed 9 days ago
A
Retailer 10
-
£459 GBP
View
A
Retailer 11
-
£513 GBP
$687 USD
View
Retailer 12
-
£568 GBP
A$1,171 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£606 GBP
$812 USD
View
B+
Retailer 14
-
£773 GBP
SGD 1,399 SGD
View
Retailer 15
-
£787 GBP
$1,054 USD
View
Price last confirmed 41 days ago
B+
Retailer 16
-
£816 GBP
$1,094 USD
View
Retailer 17
-
£869 GBP
$1,165 USD
View
Price last confirmed 14 days ago
Retailer 18
-
£896 GBP
A$1,848 AUD
View
Price last confirmed 29 days ago
B
Retailer 19
-
£952 GBP
$1,276 USD
View
B
Retailer 20
-
£972 GBP
View
B
Retailer 21
-
£988 GBP
$1,324 USD
View
Retailer 22
-
£1,037 GBP
$1,390 USD
View
Price last confirmed 7 days ago
B
Retailer 23
-
£1,299 GBP
$1,740 USD
View
Most Expensive
B
Brilliant Earth
21633778A · Oct 31
£1,351 GBP
$1,810 USD
View
23 more retailers have this diamond
Prices start from £267 GBPSave up to £1,083 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
£267 GBP