Emerald|Lab Grown|IGI

12.55ct J VS1 Emerald Lab Grown Diamond

ID • J/VS1 • IGI LG605361980

Shape and cutting style on the report: Emerald cut

Certificate IGI LG605361980

Diamond specifications and retailer prices

From €5,156 EUR
$5,760 USD
As of October 28, 2026
Save €5,193 EUR (50%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €23,080 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.55ct lab-grown emerald diamond

This 12.55ct lab-grown emerald sits in the over five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG605361980 or 605361980. Listed at 14 retailers as of October 28, 2026, with a 101% 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

12.55
Carat
J
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle43.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605361980
Dimensions15.17 × 11.00 × 7.39 mm
L/W Ratio1.38
Culet sizeLarge
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
15.17 mm11.00 mm12.55 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605361980
Side View
Table 68.0%Crown 38.3°Girdle: MED-STKPavilion 43.5°Culet: LargeDepth 67.2%

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: Oct 28
Current: €10,349 EUR|Low: €5,156 EUR|High: €23,080 EUR|Avg: €8,520 EUR|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 29, 2026
Retailer 6€5,156 EUR
Retailer 8€5,763 EUR
Retailer 2€6,274 EUR
Retailer 3€6,454 EUR
Retailer 9€6,685 EUR
Retailer 12€6,685 EUR
Retailer 5€6,686 EUR
Retailer 4€7,495 EUR
Retailer 10€7,751 EUR
Retailer 7€7,815 EUR
Retailer 11€7,937 EUR
Retailer 1€10,349 EUR
Taylor and Hart€23,080 EUR

22 data points across 13 retailers

14 retailers€5,156 EUR to €10,349 EUR

B+
Cheapest Retailer
-
€5,156 EUR
$5,760 USD
B+
Retailer 2
-
€5,763 EUR
$6,439 USD
View
B+
Retailer 3
-
€5,994 EUR
$6,696 USD
View
B
Retailer 4
-
€6,274 EUR
$7,009 USD
View
B
Retailer 5
-
€6,454 EUR
$7,211 USD
View
Final sale: no returns
Retailer 6
-
€6,685 EUR
$7,469 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
€6,685 EUR
$7,469 USD
View
B+
Retailer 8
-
€6,686 EUR
$7,470 USD
View
B
Retailer 9
-
€7,495 EUR
$8,374 USD
View
B
Retailer 10
-
€7,751 EUR
$8,660 USD
View
B
Retailer 11
-
€7,815 EUR
$8,731 USD
View
B
Retailer 12
-
€7,937 EUR
$8,867 USD
View
B
Retailer 13
-
€10,349 EUR
ZAR 186,782 ZAR
View
Most Expensive
Taylor and Hart
4KSVB2N · Oct 31
€23,080 EUR
$25,785 USD
View
Price under review
13 more retailers have this diamond
Prices start from €5,156 EURSave up to €5,193 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.

B+
12.55ct Emerald
€5,156 EUR