Marquise|Lab Grown|IGI

4.05ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG825693506

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825693506

Diamond specifications and retailer prices

From $680 USD
£536 GBP
As of October 29, 2026
Save $2,109 USD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,860 USD at Rare Carat · As of October 7, 2026
View at Rare Carat

About this 4.05ct lab-grown marquise diamond

This 4.05ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG825693506 or 825693506. Listed at 17 retailers as of October 28, 2026, with a 310% 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

4.05
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825693506
Dimensions16.80 × 8.44 × 4.99 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.80 mm8.44 mm4.05 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825693506
Side View
Table 63.0%Crown 35.1°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 59.1%

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: Oct 29
Current: $3,860 USD|Low: $680 USD|High: $3,860 USD|Avg: $2,010 USD
Rare Carat
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
October 30, 2026
Retailer 14$680 USD
Retailer 10$756 USD
Retailer 12$960 USD
Retailer 11$1,251 USD
Retailer 3$1,277 USD
Retailer 4$1,282 USD
Retailer 15$1,669 USD
Retailer 8$1,736 USD
Retailer 2$1,785 USD
Retailer 6$2,021 USD
Retailer 13$2,438 USD
Retailer 7$2,560 USD
Retailer 5$2,605 USD
Retailer 17$2,705 USD
Retailer 16$2,789 USD
Retailer 9$3,180 USD
Rare Carat$3,860 USD

27 data points across 17 retailers

17 retailers$680 USD to $2,789 USD

A
Cheapest Retailer
-
$680 USD
£536 GBP
A
Retailer 2
-
$756 USD
View
Final sale: no returns
A
Retailer 3
-
$960 USD
View
A
Retailer 4
-
$1,251 USD
£985 GBP
View
A
Retailer 5
-
$1,277 USD
View
A
Retailer 6
-
$1,282 USD
€1,221 EUR
View
A
Retailer 7
-
$1,669 USD
ZAR 26,961 ZAR
View
Retailer 8
-
$1,736 USD
A$2,670 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$1,785 USD
View
B+
Retailer 10
-
$2,021 USD
View
B+
Retailer 11
-
$2,438 USD
£1,920 GBP
View
B+
Retailer 12
-
$2,560 USD
View
B+
Retailer 13
-
$2,605 USD
View
B+
Retailer 14
-
$2,705 USD
View
B+
Retailer 15
-
$2,789 USD
View
Retailer 16
-
$3,180 USD
£2,504 GBP
View
Price last confirmed 11 days ago
Most Expensive
Rare Carat
DGD-DNG-21648 · Oct 7
$3,860 USD
View
Price last confirmed 22 days ago
16 more retailers have this diamond
Prices start from $680 USDSave up to $2,109 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
4.05ct Marquise
$680 USD