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Marquise|Lab Grown|IGI

3.18ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG844681268

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844681268

Diamond specifications and retailer prices

From $822 SGD
$643 USD
As of November 2, 2026
Save $8,245 SGD (91%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,067 SGD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 3.18ct lab-grown marquise diamond

This 3.18ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG844681268 or 844681268. Listed at 11 retailers as of November 1, 2026, with prices from $822 to $9,067, a $8,245 spread on the same certified stone. Brilliant Earth lists it at $9,067. 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

3.18
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844681268
Dimensions14.67 × 7.77 × 4.81 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.67 mm7.77 mm3.18 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844681268
Side View
Table 60.0%Crown 34.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.9%

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: Nov 2
Current: $3,314 SGD|Low: $822 SGD|High: $8,131 SGD|Avg: $2,841 SGD|+5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 22, 2026
Retailer 2$822 SGD
Retailer 8$894 SGD
Retailer 12$953 SGD
Retailer 5$1,168 SGD
Retailer 7$1,558 SGD
Retailer 10$2,290 SGD
Retailer 3$2,461 SGD
Retailer 11$2,681 SGD
Retailer 1$3,314 SGD
Retailer 4$4,298 SGD
Retailer 9$4,598 SGD
Retailer 6$8,131 SGD

6 data points across 12 retailers

11 retailers$822 SGD to $9,067 SGD

A
Cheapest Retailer
-
$822 SGD
$643 USD
A
Retailer 2
-
$894 SGD
$699 USD
View
A
Retailer 3
-
$953 SGD
$745 USD
View
A
Retailer 4
-
$1,168 SGD
$913 USD
View
A
Retailer 5
-
$1,558 SGD
$1,218 USD
View
Retailer 6
-
$2,290 SGD
$1,791 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,681 SGD
$2,096 USD
View
B
Retailer 8
-
$3,314 SGD
CA$3,599 CAD
View
B
Retailer 9
-
$4,598 SGD
$3,595 USD
View
B
Retailer 10
-
$8,131 SGD
$6,358 USD
View
Most Expensive
B
Brilliant Earth
22433571A · Nov 1
$9,067 SGD
$7,090 USD
View
10 more retailers have this diamond
Prices start from $822 SGDSave up to $8,245 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
3.18ct Marquise
$822 SGD