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Round|Lab Grown|IGI

1.00ct K VS1 Round Lab Grown Diamond

VG • K/VS1 • IGI LG499105205

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499105205

Diamond specifications and retailer prices

From £672 GBP
As of November 5, 2026
Save £1,970 GBP (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,642 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG499105205 or 499105205. Listed at 10 retailers as of November 1, 2026, with prices from £672 to £2,642, a £1,970 spread on the same certified stone. MOH London lists it at £2,642. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
K
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105205
Dimensions6.26 × 6.34 × 3.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.26 mm6.34 mm1.00 ctK / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105205
Side View
Table 58.0%Crown 37.9°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,642 GBP|Low: £645 GBP|High: £2,673 GBP|Avg: £1,428 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 6£672 GBP
Retailer 10£730 GBP
Retailer 7£779 GBP
Retailer 4£910 GBP
Retailer 11£1,139 GBP
Retailer 8£1,250 GBP
Retailer 2£1,432 GBP
Retailer 5£1,733 GBP
Retailer 3£1,742 GBP
Retailer 9£2,190 GBP
MOH London£2,642 GBP

21 data points across 11 retailers

10 retailers£672 GBP to £2,642 GBP

B+
Cheapest Retailer
-
£672 GBP
B+
Retailer 2
-
£730 GBP
View
B+
Retailer 3
-
£779 GBP
View
Retailer 4
-
£779 GBP
View
Price last confirmed 25 days ago
B
Retailer 5
-
£910 GBP
View
B
Retailer 6
-
£1,250 GBP
View
B
Retailer 7
-
£1,432 GBP
View
B
Retailer 8
-
£1,733 GBP
View
B
Retailer 9
-
£2,190 GBP
View
Most Expensive
B
MOH London
LG499105205 · Nov 1
£2,642 GBP
View
9 more retailers have this diamond
Prices start from £672 GBPSave up to £1,970 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.

B+
1.00ct Round
£672 GBP