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Marquise|Lab Grown|IGI

5.51ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG752586341

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG752586341

Diamond specifications and retailer prices

From $1,056 USD
As of October 29, 2026
Save $5,384 USD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,640 USD at Brilliant Earth · As of October 22, 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 LG752586341 or 752586341. Listed at 15 retailers as of October 29, 2026, with a 510% 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
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.1°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752586341
Dimensions18.69 × 9.56 × 5.35 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.69 mm9.56 mm5.51 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752586341
Side View
Table 61.0%Crown 30.1°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 56.0%

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: Oct 29
Current: $6,440 USD|Low: $813 USD|High: $13,030 USD|Avg: $3,711 USD|-50.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 7$1,056 USD
Retailer 2$1,315 USD
Retailer 5$1,620 USD
Retailer 3$1,987 USD
Retailer 4$2,222 USD
Retailer 8$3,018 USD
Retailer 6$3,391 USD
Retailer 10$3,798 USD
Retailer 9$5,685 USD
Brilliant Earth$6,440 USD

24 data points across 10 retailers

15 retailers$1,056 USD to $6,440 USD

Retailer 1
-
$943 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$1,056 USD
View
Final sale: no returns
Retailer 3
-
$1,094 USD
View
Price last confirmed 20 days ago
Retailer 4
-
$1,094 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
$1,315 USD
View
B+
Retailer 6
-
$1,620 USD
View
A
Retailer 7
-
$1,987 USD
€1,892 EUR
View
A
Retailer 8
-
$2,222 USD
View
B+
Retailer 9
-
$3,018 USD
£2,376 GBP
View
Retailer 10
-
$3,075 USD
View
Price last confirmed 20 days ago
B+
Retailer 11
-
$3,391 USD
View
B+
Retailer 12
-
$3,798 USD
SGD 5,132 SGD
View
Retailer 13
-
$5,685 USD
View
Price last confirmed 23 days ago
B
Retailer 14
-
$6,440 USD
View
Most Expensive
Brilliant Earth
16806716A · Oct 22
$12,640 USD
View
Price under review
14 more retailers have this diamond
Prices start from $1,056 USDSave up to $5,384 USD

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
$1,056 USD