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Marquise|Lab Grown|IGI

3.51ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG843641551

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843641551

Diamond specifications and retailer prices

From $685 SGD
$536 USD
As of October 29, 2026
Save $3,623 SGD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,308 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843641551 or 843641551. Listed at 14 retailers as of October 29, 2026, with prices from $685 to $4,308, a $3,623 spread on the same certified stone. Brilliant Earth lists it at $4,308. 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

3.51
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843641551
Dimensions15.66 × 7.75 × 4.87 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.66 mm7.75 mm3.51 ctF / VS2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG843641551
Side View
Table 59.0%Crown 35.3°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $4,308 SGD|Low: $685 SGD|High: $7,197 SGD|Avg: $2,259 SGD|-40.1%
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
October 31, 2026
Retailer 3$685 SGD
Retailer 9$911 SGD
Retailer 8$940 SGD
Retailer 6$1,016 SGD
Retailer 11$1,134 SGD
Retailer 10$1,253 SGD
Retailer 7$1,684 SGD
Retailer 2$1,717 SGD
Retailer 4$2,477 SGD
Retailer 14$2,616 SGD
Retailer 13$2,664 SGD
Retailer 12$2,793 SGD
Retailer 5$3,458 SGD
Brilliant Earth$4,308 SGD

12 data points across 14 retailers

14 retailers$685 SGD to $4,308 SGD

A
Cheapest Retailer
-
$685 SGD
$536 USD
Final sale: no returns
A
Retailer 2
-
$911 SGD
£561 GBP
View
Retailer 3
-
$940 SGD
$735 USD
View
Price last confirmed 5 days ago
B+
Retailer 4
-
$1,016 SGD
$795 USD
View
A
Retailer 5
-
$1,134 SGD
€845 EUR
View
A
Retailer 6
-
$1,253 SGD
£772 GBP
View
A
Retailer 7
-
$1,684 SGD
$1,317 USD
View
A
Retailer 8
-
$1,717 SGD
$1,343 USD
View
B+
Retailer 9
-
$2,477 SGD
$1,938 USD
View
B+
Retailer 10
-
$2,616 SGD
$2,046 USD
View
Retailer 11
-
$2,664 SGD
$2,084 USD
View
Price last confirmed 8 days ago
Retailer 12
-
$2,793 SGD
£1,720 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
$3,458 SGD
$2,705 USD
View
Most Expensive
B
Brilliant Earth
22183942A · Oct 31
$4,308 SGD
$3,370 USD
View
13 more retailers have this diamond
Prices start from $685 SGDSave up to $3,623 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
3.51ct Marquise
$685 SGD