Marquise|Lab Grown|IGI

3.05ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG826608002

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826608002

Diamond specifications and retailer prices

From $2,935 USD
£2,311 GBP
As of October 29, 2026
Save $4,569 USD (61%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,504 USD at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise 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 LG826608002 or 826608002. Listed at 5 retailers as of October 27, 2026, with prices from $2,935 to $7,504, a $4,569 spread on the same certified stone. Taylor and Hart lists it at $7,504. 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

3.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826608002
Dimensions14.87 × 7.41 × 4.79 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.87 mm7.41 mm3.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826608002
Side View
Table 60.0%Crown 38.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,935 USD|Low: $2,927 USD|High: $7,504 USD|Avg: $4,649 USD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
October 29, 2026
Retailer 1$2,935 USD
Retailer 3$3,062 USD
Retailer 2$3,263 USD
Retailer 4$6,149 USD
Taylor and Hart$7,504 USD

7 data points across 5 retailers

5 retailers$2,935 USD to $7,504 USD

A
Cheapest Retailer
-
$2,935 USD
£2,311 GBP
A
Retailer 2
-
$3,062 USD
View
A
Retailer 3
-
$3,263 USD
View
B+
Retailer 4
-
$6,149 USD
£4,842 GBP
View
Most Expensive
B+
Taylor and Hart
7486R2O · Oct 27
$7,504 USD
View
4 more retailers have this diamond
Prices start from $2,935 USDSave up to $4,569 USD

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
3.05ct Marquise
$2,935 USD