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Round|Lab Grown|IGI

12.03ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG850602287

Shape and cutting style on the report: Round brilliant

Certificate IGI LG850602287

Diamond specifications and retailer prices

From €3,021 EUR
£2,657 GBP
As of November 1, 2026
Save €10,241 EUR (77%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €13,262 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.03ct lab-grown round diamond

This 12.03ct lab-grown round sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG850602287 or 850602287. Listed at 6 retailers as of October 31, 2026, with prices from €3,021 to €13,262, a €10,241 spread on the same certified stone. Taylor and Hart lists it at €13,262. 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

12.03
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850602287
Dimensions14.82 × 14.90 × 8.75 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
14.82 mm14.90 mm12.03 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850602287
Side View
Table 61.0%Crown 31.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 58.9%

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 1
Current: €3,021 EUR|Low: €3,021 EUR|High: €13,262 EUR|Avg: €8,280 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
November 1, 2026
Retailer 1€3,021 EUR
Retailer 2€4,891 EUR
Retailer 4€8,727 EUR
Retailer 3€9,458 EUR
Taylor and Hart€13,262 EUR

2 data points across 5 retailers

6 retailers€3,021 EUR to €13,262 EUR

A
Cheapest Retailer
-
€3,021 EUR
£2,657 GBP
A
Retailer 2
-
€3,761 EUR
$4,202 USD
View
A
Retailer 3
-
€4,891 EUR
£4,303 GBP
View
B
Retailer 4
-
€8,727 EUR
$9,750 USD
View
B
Retailer 5
-
€9,458 EUR
$10,566 USD
View
Most Expensive
B
Taylor and Hart
UEGDW5V · Oct 31
€13,262 EUR
$14,816 USD
View
5 more retailers have this diamond
Prices start from €3,021 EURSave up to €10,241 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
12.03ct Round
€3,021 EUR