CaratHunter
Plans
Round|Lab Grown|IGI

2.51ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG488154608

Shape and cutting style on the report: Round brilliant

Certificate IGI LG488154608

Diamond specifications and retailer prices

From €1,949 EUR
As of November 5, 2026
Save €4,168 EUR (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €6,117 EUR at MOH London · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG488154608 or 488154608. Listed at 9 retailers as of November 5, 2026, with prices from €1,949 to €6,117, a €4,168 spread on the same certified stone. MOH London lists it at €6,117. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488154608
Dimensions8.61 × 8.67 × 5.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
8.61 mm8.67 mm2.51 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488154608
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.1%

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: Nov 5
Current: €6,117 EUR|Low: €1,949 EUR|High: €6,215 EUR|Avg: €3,497 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4€1,949 EUR
Retailer 5€2,260 EUR
Retailer 2€2,406 EUR
Retailer 7€2,888 EUR
Retailer 6€3,532 EUR
Retailer 3€3,543 EUR
MOH London€6,117 EUR

18 data points across 7 retailers

9 retailers€1,949 EUR to €6,117 EUR

A
Cheapest Retailer
-
€1,949 EUR
A
Retailer 2
-
€2,120 EUR
View
A
Retailer 3
-
€2,260 EUR
View
Retailer 4
-
€2,260 EUR
View
Price last confirmed 26 days ago
B+
Retailer 5
-
€2,406 EUR
View
B
Retailer 6
-
€3,108 EUR
View
B
Retailer 7
-
€3,532 EUR
View
B
Retailer 8
-
€3,543 EUR
View
Most Expensive
B
MOH London
LG488154608 · Nov 5
€6,117 EUR
£5,406 GBP
View
8 more retailers have this diamond
Prices start from €1,949 EURSave up to €4,168 EUR

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
€1,949 EUR