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Marquise|Lab Grown|IGI

3.78ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG806630274

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG806630274

Diamond specifications and retailer prices

From $1,272 SGD
$995 USD
As of October 30, 2026
Save $9,658 SGD (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,930 SGD at Brilliant Earth · As of October 30, 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 LG806630274 or 806630274. Listed at 19 retailers as of October 30, 2026, with prices from $1,272 to $10,930, a $9,658 spread on the same certified stone. Brilliant Earth lists it at $10,930. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG806630274
Dimensions15.71 × 8.02 × 5.10 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.71 mm8.02 mm3.78 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG806630274
Side View
Table 62.0%Crown 38°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 63.6%

Caratlytics Score

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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 30
Current: $10,930 SGD|Low: $1,272 SGD|High: $10,930 SGD|Avg: $3,138 SGD
Brilliant Earth
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
October 30, 2026
Retailer 9$1,272 SGD
Retailer 15$1,540 SGD
Retailer 3$1,810 SGD
Retailer 2$1,889 SGD
Retailer 10$2,030 SGD
Retailer 14$2,428 SGD
Retailer 7$2,972 SGD
Retailer 8$3,034 SGD
Retailer 16$3,063 SGD
Retailer 12$3,508 SGD
Retailer 5$3,663 SGD
Retailer 6$4,536 SGD
Retailer 13$4,581 SGD
Retailer 11$4,742 SGD
Retailer 4$5,175 SGD
Brilliant Earth$10,930 SGD

18 data points across 16 retailers

19 retailers$1,272 SGD to $10,930 SGD

A
Cheapest Retailer
-
$1,272 SGD
$995 USD
Final sale: no returns
A
Retailer 2
-
$1,540 SGD
$1,205 USD
View
A
Retailer 3
-
$1,810 SGD
$1,416 USD
View
A
Retailer 4
-
$1,889 SGD
$1,478 USD
View
A
Retailer 5
-
$2,030 SGD
£1,250 GBP
View
A
Retailer 6
-
$2,428 SGD
€1,809 EUR
View
B+
Retailer 7
-
$2,972 SGD
$2,325 USD
View
Retailer 8
-
$3,034 SGD
A$3,651 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$3,063 SGD
ZAR 38,705 ZAR
View
B+
Retailer 10
-
$3,508 SGD
$2,744 USD
View
B+
Retailer 11
-
$3,663 SGD
£2,256 GBP
View
B
Retailer 12
-
$4,339 SGD
$3,394 USD
View
B+
Retailer 13
-
$4,536 SGD
£2,794 GBP
View
B+
Retailer 14
-
$4,581 SGD
$3,583 USD
View
B+
Retailer 15
-
$4,742 SGD
$3,709 USD
View
B
Retailer 16
-
$5,175 SGD
View
Retailer 17
-
$5,905 SGD
A$7,106 AUD
View
Price last confirmed 21 days ago
Retailer 18
-
$7,351 SGD
$5,750 USD
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
20403422A · Oct 30
$10,930 SGD
$8,550 USD
View
18 more retailers have this diamond
Prices start from $1,272 SGDSave up to $9,658 SGD

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
$1,272 SGD