CaratHunter
Plans
Round|Lab Grown|IGI

1.91ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG636471876

Shape and cutting style on the report: Round brilliant

Certificate IGI LG636471876

Diamond specifications and retailer prices

From £181 GBP
$242 USD
As of October 29, 2026
Save £1,558 GBP (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,739 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG636471876 or 636471876. Listed at 11 retailers as of October 29, 2026, with prices from £181 to £1,739, a £1,558 spread on the same certified stone. Do Amore Diamonds lists it at £1,739. 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 angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636471876
Dimensions7.98 × 7.95 × 4.87 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
7.98 mm7.95 mm1.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636471876
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.2%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: £1,739 GBP|Low: £155 GBP|High: £1,754 GBP|Avg: £783 GBP|+2.6%
Do Amore Diamonds
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
Retailer 17
October 29, 2026
Retailer 17£181 GBP
Retailer 3£204 GBP
Retailer 16£210 GBP
Retailer 15£378 GBP
Retailer 10£395 GBP
Retailer 5£470 GBP
Retailer 11£575 GBP
Retailer 7£663 GBP
Retailer 4£664 GBP
Retailer 13£723 GBP
Retailer 14£796 GBP
Retailer 12£855 GBP
Retailer 2£997 GBP
Retailer 6£1,012 GBP
Retailer 8£1,268 GBP
Retailer 9£1,515 GBP
Do Amore Diamonds£1,739 GBP

36 data points across 17 retailers

11 retailers£181 GBP to £1,739 GBP

A
Cheapest Retailer
-
£181 GBP
$242 USD
A
Retailer 2
-
£210 GBP
$281 USD
View
B+
Retailer 3
-
£378 GBP
$506 USD
View
A
Retailer 4
-
£395 GBP
View
B+
Retailer 5
-
£575 GBP
A$1,186 AUD
View
B+
Retailer 6
-
£638 GBP
$855 USD
View
B
Retailer 7
-
£723 GBP
$969 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£796 GBP
$1,066 USD
View
Retailer 9
-
£855 GBP
$1,145 USD
View
Price last confirmed 15 days ago
B
Retailer 10
-
£997 GBP
View
Most Expensive
B
Do Amore Diamonds
27-25C559E9C · Oct 29
£1,739 GBP
$2,330 USD
View
10 more retailers have this diamond
Prices start from £181 GBPSave up to £1,558 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
£181 GBP