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Round|Lab Grown|IGI

0.99ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG841605448

Shape and cutting style on the report: Round brilliant

Certificate IGI LG841605448

Diamond specifications and retailer prices

From £134 GBP
$178 USD
As of October 29, 2026
Save £644 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £777 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.99ct lab-grown round diamond

This 0.99ct lab-grown round sits in the just-under-one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG841605448 or 841605448. Listed at 18 retailers as of October 29, 2026, with prices from £134 to £777, a £644 spread on the same certified stone. MOH London lists it at £777. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841605448
Dimensions6.39 × 6.43 × 3.88 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
6.39 mm6.43 mm0.99 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841605448
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.6%

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: £777 GBP|Low: £134 GBP|High: £777 GBP|Avg: £371 GBP
MOH London
Retailer 2
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Retailer 18
October 30, 2026
Retailer 18£134 GBP
Retailer 16£155 GBP
Retailer 3£165 GBP
Retailer 14£165 GBP
Retailer 6£185 GBP
Retailer 11£285 GBP
Retailer 5£289 GBP
Retailer 2£291 GBP
Retailer 9£294 GBP
Retailer 12£299 GBP
Retailer 8£345 GBP
Retailer 15£375 GBP
Retailer 13£412 GBP
Retailer 4£532 GBP
Retailer 17£561 GBP
Retailer 7£572 GBP
Retailer 10£595 GBP
MOH London£777 GBP

14 data points across 18 retailers

18 retailers£134 GBP to £777 GBP

A
Cheapest Retailer
-
£134 GBP
$178 USD
A
Retailer 2
-
£155 GBP
$206 USD
View
A
Retailer 3
-
£165 GBP
$220 USD
View
A
Retailer 4
-
£165 GBP
$220 USD
View
A
Retailer 5
-
£185 GBP
$246 USD
View
A
Retailer 6
-
£285 GBP
€361 EUR
View
Retailer 7
-
£289 GBP
$385 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
£291 GBP
View
A
Retailer 9
-
£294 GBP
$391 USD
View
A
Retailer 10
-
£299 GBP
ZAR 6,426 ZAR
View
A
Retailer 11
-
£345 GBP
$459 USD
View
A
Retailer 12
-
£375 GBP
$500 USD
View
A
Retailer 13
-
£412 GBP
A$844 AUD
View
B+
Retailer 14
-
£532 GBP
$708 USD
View
B+
Retailer 15
-
£561 GBP
$747 USD
View
B+
Retailer 16
-
£572 GBP
$762 USD
View
B+
Retailer 17
-
£595 GBP
$792 USD
View
Most Expensive
B+
MOH London
LG841605448 · Oct 29
£777 GBP
View
17 more retailers have this diamond
Prices start from £134 GBPSave up to £644 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
0.99ct Round
£134 GBP