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Marquise|Lab Grown|IGI

5.12ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG821655131

Certificate IGI LG821655131

Diamond specifications and retailer prices

From $7,174 SGD
$5,612 USD
As of October 31, 2026
Save $3,142 SGD (30%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $10,317 SGD at Zales · As of October 30, 2026
View at Zales

About this 5.12ct lab-grown marquise diamond

This 5.12ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821655131 or 821655131. Listed at 4 retailers as of October 30, 2026, with prices from $7,174 to $10,317, a $3,142 spread on the same certified stone. Zales lists it at $10,317. 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

5.12
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG821655131
Dimensions16.94 × 9.38 × 5.70 mm
L/W Ratio1.81
Top View
16.94 mm9.38 mm5.12 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821655131
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
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Price History

Last verified: Oct 31
Current: $9,729 SGD|Low: $7,174 SGD|High: $10,317 SGD|Avg: $9,458 SGD
Retailer 1
Retailer 2
Retailer 3
Zales
September 28, 2026
Retailer 2$7,174 SGD
Retailer 1$9,729 SGD
Retailer 3$10,317 SGD
Zales$10,317 SGD

3 data points across 4 retailers

4 retailers$7,174 SGD to $10,317 SGD

B
Cheapest Retailer
-
$7,174 SGD
$5,612 USD
B
Retailer 2
-
$9,729 SGD
$7,610 USD
View
B
Retailer 3
-
$10,317 SGD
$8,070 USD
View
Most Expensive
B
Zales
529255431 · Oct 30
$10,317 SGD
$8,070 USD
View
3 more retailers have this diamond
Prices start from $7,174 SGDSave up to $3,142 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.

B
5.12ct Marquise
$7,174 SGD