Radiant|Lab Grown|IGI

3.12ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG828684106

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG828684106

Diamond specifications and retailer prices

From €876 EUR
$975 USD
As of October 30, 2026
Save €2,693 EUR (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,323 EUR at Novita Diamonds · As of October 5, 2026
View at Novita Diamonds

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828684106 or 828684106. Listed at 16 retailers as of October 30, 2026, with a 307% 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

3.12
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828684106
Dimensions11.02 × 7.00 × 4.66 mm
L/W Ratio1.57
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.02 mm7.00 mm3.12 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828684106
Side View
Table 65.0%Crown 42.2°Girdle: MED-STKPavilion 33.9°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 30
Current: €876 EUR|Low: €876 EUR|High: €3,668 EUR|Avg: €2,065 EUR|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 1€876 EUR
Retailer 7€1,002 EUR
Retailer 3€1,105 EUR
Retailer 2€1,307 EUR
Retailer 4€1,389 EUR
Retailer 8€1,396 EUR
Retailer 5€2,041 EUR
Retailer 6€2,081 EUR
Retailer 12€2,108 EUR
Retailer 10€2,750 EUR
Retailer 11€3,150 EUR
Retailer 9€3,261 EUR
Retailer 13€3,421 EUR
Retailer 14€3,569 EUR

17 data points across 14 retailers

16 retailers€876 EUR to €3,569 EUR

A+
Cheapest Retailer
-
€876 EUR
$975 USD
Final sale: no returns
A
Retailer 2
-
€1,002 EUR
£878 GBP
View
A
Retailer 3
-
€1,105 EUR
$1,230 USD
View
A
Retailer 4
-
€1,307 EUR
$1,455 USD
View
Retailer 5
-
€1,389 EUR
View
Price last confirmed 7 days ago
A
Retailer 6
-
€1,396 EUR
£1,223 GBP
View
A
Retailer 7
-
€2,041 EUR
$2,272 USD
View
Retailer 8
-
€2,081 EUR
A$3,564 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
€2,108 EUR
ZAR 37,897 ZAR
View
A
Retailer 10
-
€2,750 EUR
$3,061 USD
View
B+
Retailer 11
-
€2,962 EUR
$3,297 USD
View
B+
Retailer 12
-
€3,150 EUR
$3,506 USD
View
B+
Retailer 13
-
€3,261 EUR
$3,629 USD
View
B+
Retailer 14
-
€3,421 EUR
£2,998 GBP
View
B+
Retailer 15
-
€3,569 EUR
SGD 5,368 SGD
View
Most Expensive
Novita Diamonds
cert_828684106 · Oct 5
€4,323 EUR
A$7,403 AUD
View
Price last confirmed 25 days ago
15 more retailers have this diamond
Prices start from €876 EURSave up to €2,693 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+
3.12ct Radiant
€876 EUR