CaratHunter
Plans
Marquise|Lab Grown|IGI

3.78ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG817609496

Shape and cutting style on the report: Hexagonal modified brilliant

Certificate IGI LG817609496

Diamond specifications and retailer prices

From $1,803 SGD
$1,410 USD
As of October 30, 2026
Save $5,275 SGD (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,078 SGD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 LG817609496 or 817609496. Listed at 6 retailers as of October 30, 2026, with prices from $1,803 to $7,078, a $5,275 spread on the same certified stone. Taylor and Hart lists it at $7,078. 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 angle34.8°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817609496
Dimensions15.26 × 7.54 × 4.99 mm
L/W Ratio2.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.26 mm7.54 mm3.78 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817609496
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 66.2%

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 30
Current: $6,009 SGD|Low: $1,803 SGD|High: $13,845 SGD|Avg: $5,534 SGD|+9.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
October 30, 2026
Retailer 7$1,803 SGD
Retailer 4$2,026 SGD
Retailer 5$2,853 SGD
Retailer 6$5,625 SGD
Retailer 1$6,009 SGD
Retailer 2$6,447 SGD
Taylor and Hart$7,078 SGD
Retailer 3$13,845 SGD

7 data points across 8 retailers

6 retailers$1,803 SGD to $7,078 SGD

A
Cheapest Retailer
-
$1,803 SGD
$1,410 USD
Final sale: no returns
Retailer 2
-
$2,853 SGD
$2,232 USD
View
Price last confirmed 12 days ago
Retailer 3
-
$5,625 SGD
$4,400 USD
View
Price last confirmed 11 days ago
B
Retailer 4
-
$6,009 SGD
£3,701 GBP
View
Retailer 5
-
$6,447 SGD
£3,971 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Taylor and Hart
GU16R6T · Oct 30
$7,078 SGD
$5,536 USD
View
5 more retailers have this diamond
Prices start from $1,803 SGDSave up to $5,275 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
$1,803 SGD