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Round|Lab Grown|IGI

2.50ct K VS1 Round Lab Grown Diamond

ID • K/VS1 • IGI LG500151133

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500151133

Diamond specifications and retailer prices

From £3,843 GBP
As of November 5, 2026
Save £5,205 GBP (58%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £11,538 GBP at Cape Diamonds · As of November 3, 2026
View at Cape Diamonds

About this 2.5ct lab-grown round diamond

This 2.5ct 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 LG500151133 or 500151133. Listed at 10 retailers as of November 5, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.50
Carat
K
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500151133
Dimensions8.76 × 8.74 × 5.30 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.76 mm8.74 mm2.50 ctK / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500151133
Side View
Table 57.5%Crown 35.7°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 60.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £11,538 GBP|Low: £3,690 GBP|High: £12,034 GBP|Avg: £6,490 GBP|-4.1%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6£3,843 GBP
Retailer 9£4,028 GBP
Retailer 7£4,459 GBP
Retailer 4£4,462 GBP
Retailer 11£4,763 GBP
Retailer 10£5,293 GBP
Retailer 5£5,591 GBP
Retailer 8£6,890 GBP
Retailer 2£9,049 GBP
Retailer 3£10,244 GBP
Cape Diamonds£11,538 GBP

22 data points across 11 retailers

10 retailers£3,843 GBP to £9,049 GBP

B
Cheapest Retailer
-
£3,843 GBP
B
Retailer 2
-
£4,028 GBP
View
B
Retailer 3
-
£4,459 GBP
View
Retailer 4
-
£4,459 GBP
View
Price last confirmed 25 days ago
B
Retailer 5
-
£4,462 GBP
View
B
Retailer 6
-
£5,293 GBP
View
B
Retailer 7
-
£5,591 GBP
View
B
Retailer 8
-
£6,890 GBP
View
B
Retailer 9
-
£9,049 GBP
View
Most Expensive
Cape Diamonds
cert_500151133 · Nov 3
£11,538 GBP
ZAR 250,884 ZAR
View
Price under review
9 more retailers have this diamond
Prices start from £3,843 GBPSave up to £5,205 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
2.50ct Round
£3,843 GBP