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Marquise|Lab Grown|IGI

3.78ct E VVS1 Marquise Lab Grown Diamond

ID • E/VVS1 • IGI LG844656594

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844656594

Diamond specifications and retailer prices

From $1,404 AUD
$986 USD
As of October 24, 2026
Save $12,419 AUD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,823 AUD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.78ct lab-grown marquise diamond

This 3.78ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG844656594 or 844656594. Listed at 21 retailers as of October 24, 2026, with prices from $1,404 to $13,823, a $12,419 spread on the same certified stone. Brilliant Earth lists it at $13,823. 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

3.78
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844656594
Dimensions16.96 × 7.98 × 4.86 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.96 mm7.98 mm3.78 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844656594
Side View
Table 62.0%Crown 39.4°Girdle: STK-THKPavilion 39°Culet: NoneDepth 60.9%

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: Oct 24
Current: $1,744 AUD|Low: $1,303 AUD|High: $5,700 AUD|Avg: $3,215 AUD|-4.7%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 28, 2026
Retailer 11$1,303 AUD
Retailer 5$1,404 AUD
Retailer 8$1,445 AUD
Retailer 19$1,498 AUD
Retailer 15$1,742 AUD
Retailer 1$1,744 AUD
Retailer 3$2,034 AUD
Retailer 17$2,143 AUD
Retailer 12$2,272 AUD
Retailer 16$2,291 AUD
Retailer 18$3,331 AUD
Retailer 6$3,444 AUD
Retailer 13$3,474 AUD
Retailer 4$3,915 AUD
Retailer 10$4,166 AUD
Retailer 20$4,210 AUD
Retailer 14$4,862 AUD
Retailer 9$5,026 AUD
Retailer 21$5,084 AUD
Retailer 7$5,202 AUD
Retailer 2$5,384 AUD

11 data points across 21 retailers

21 retailers$1,404 AUD to $13,823 AUD

Retailer 1
-
$1,303 AUD
$915 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$1,404 AUD
$986 USD
View
A
Retailer 3
-
$1,498 AUD
$1,052 USD
View
A
Retailer 4
-
$1,742 AUD
£964 GBP
View
A
Retailer 5
-
$1,744 AUD
$1,225 USD
View
A
Retailer 6
-
$2,034 AUD
$1,429 USD
View
A
Retailer 7
-
$2,143 AUD
$1,505 USD
View
A
Retailer 8
-
$2,272 AUD
€1,520 EUR
View
A
Retailer 9
-
$2,291 AUD
£1,267 GBP
View
B+
Retailer 10
-
$3,331 AUD
$2,340 USD
View
B+
Retailer 11
-
$3,444 AUD
ZAR 39,082 ZAR
View
Retailer 12
-
$3,474 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$3,915 AUD
$2,750 USD
View
Retailer 14
-
$4,166 AUD
£2,304 GBP
View
Price last confirmed 7 days ago
B+
Retailer 15
-
$4,210 AUD
$2,957 USD
View
B+
Retailer 16
-
$4,862 AUD
$3,415 USD
View
B+
Retailer 17
-
$5,026 AUD
SGD 4,771 SGD
View
B+
Retailer 18
-
$5,084 AUD
£2,812 GBP
View
B+
Retailer 19
-
$5,202 AUD
$3,654 USD
View
B+
Retailer 20
-
$5,384 AUD
$3,782 USD
View
Most Expensive
B
Brilliant Earth
22289103A · Oct 26
$13,823 AUD
$9,710 USD
View
20 more retailers have this diamond
Prices start from $1,404 AUDSave up to $12,419 AUD

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
3.78ct Marquise
$1,404 AUD