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Marquise|Lab Grown|IGI

5.51ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG841609854

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841609854

Diamond specifications and retailer prices

From $1,290 SGD
$1,009 USD
As of October 29, 2026
Save $5,882 SGD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $16,159 SGD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 5.51ct lab-grown marquise diamond

This 5.51ct 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 LG841609854 or 841609854. Listed at 21 retailers as of October 28, 2026, with a 456% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.51
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841609854
Dimensions18.30 × 9.00 × 5.40 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.30 mm9.00 mm5.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841609854
Side View
Table 65.0%Crown 32.9°Girdle: VTK-ETKPavilion 39.1°Culet: NoneDepth 60.0%

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 29
Current: $16,159 SGD|Low: $1,259 SGD|High: $16,159 SGD|Avg: $3,159 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 5$1,290 SGD
Retailer 14$1,312 SGD
Retailer 13$1,453 SGD
Retailer 11$1,460 SGD
Retailer 12$1,461 SGD
Retailer 4$1,560 SGD
Retailer 19$1,909 SGD
Retailer 2$1,966 SGD
Retailer 15$2,059 SGD
Retailer 18$2,452 SGD
Retailer 17$2,717 SGD
Retailer 10$2,737 SGD
Retailer 7$2,831 SGD
Retailer 20$2,976 SGD
Retailer 3$3,301 SGD
Retailer 9$3,858 SGD
Retailer 6$4,184 SGD
Retailer 16$4,561 SGD
Retailer 21$4,647 SGD
Retailer 8$7,172 SGD
Brilliant Earth$16,159 SGD

26 data points across 21 retailers

21 retailers$1,290 SGD to $7,172 SGD

A
Cheapest Retailer
-
$1,290 SGD
$1,009 USD
Final sale: no returns
Retailer 2
-
$1,312 SGD
$1,026 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$1,453 SGD
£895 GBP
View
Retailer 4
-
$1,460 SGD
$1,142 USD
View
Price last confirmed 19 days ago
Retailer 5
-
$1,461 SGD
$1,143 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$1,560 SGD
$1,220 USD
View
A
Retailer 7
-
$1,909 SGD
$1,493 USD
View
B+
Retailer 8
-
$1,966 SGD
$1,538 USD
View
A
Retailer 9
-
$2,059 SGD
£1,268 GBP
View
A
Retailer 10
-
$2,452 SGD
€1,827 EUR
View
A
Retailer 11
-
$2,717 SGD
ZAR 34,339 ZAR
View
Retailer 12
-
$2,737 SGD
$2,141 USD
View
Price last confirmed 18 days ago
Retailer 13
-
$2,831 SGD
A$3,407 AUD
View
Price last confirmed 10 days ago
A
Retailer 14
-
$2,976 SGD
$2,328 USD
View
B+
Retailer 15
-
$3,301 SGD
$2,582 USD
View
Retailer 16
-
$3,858 SGD
£2,376 GBP
View
Price last confirmed 8 days ago
B+
Retailer 17
-
$4,184 SGD
$3,273 USD
View
B+
Retailer 18
-
$4,561 SGD
£2,809 GBP
View
B+
Retailer 19
-
$4,647 SGD
$3,635 USD
View
B
Retailer 20
-
$7,172 SGD
$5,610 USD
View
Most Expensive
Brilliant Earth
21795140A · Oct 26
$16,159 SGD
$12,640 USD
View
Price under review
20 more retailers have this diamond
Prices start from $1,290 SGDSave up to $5,882 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
5.51ct Marquise
$1,290 SGD