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Round|Lab Grown|IGI

2.51ct K VS1 Round Lab Grown Diamond

ID • K/VS1 • IGI LG653410784

Shape and cutting style on the report: Round brilliant

Certificate IGI LG653410784

Diamond specifications and retailer prices

From £452 GBP
As of November 6, 2026
Save £771 GBP (63%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,223 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG653410784 or 653410784. Listed at 6 retailers as of November 3, 2026, with prices from £452 to £1,223, a £771 spread on the same certified stone. MOH London lists it at £1,223. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.51
Carat
K
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653410784
Dimensions8.79 × 8.74 × 5.32 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.79 mm8.74 mm2.51 ctK / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653410784
Side View
Table 58.0%Crown 33.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
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 6
Current: £1,223 GBP|Low: £386 GBP|High: £1,237 GBP|Avg: £655 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 6£386 GBP
Retailer 3£452 GBP
Retailer 4£499 GBP
Retailer 5£537 GBP
Retailer 2£821 GBP
MOH London£1,223 GBP

12 data points across 6 retailers

6 retailers£452 GBP to £1,223 GBP

B+
Cheapest Retailer
-
£452 GBP
A
Retailer 2
-
£499 GBP
View
A
Retailer 3
-
£537 GBP
View
A
Retailer 4
-
£821 GBP
View
Retailer 5
-
£828 GBP
View
Price last confirmed 33 days ago
Most Expensive
A
MOH London
LG653410784 · Nov 3
£1,223 GBP
View
5 more retailers have this diamond
Prices start from £452 GBPSave up to £771 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
2.51ct Round
£452 GBP