CaratHunter
Plans
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 $1,790 NZD
$1,009 USD
As of October 31, 2026
Save $9,654 NZD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $11,444 NZD at Brilliant Earth · As of October 31, 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 31, 2026, with prices from $1,790 to $11,444, a $9,654 spread on the same certified stone. Brilliant Earth lists it at $11,444. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $11,444 NZD|Low: $1,790 NZD|High: $22,427 NZD|Avg: $4,438 NZD|-49.0%
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 31, 2026
Retailer 6$1,790 NZD
Retailer 14$1,820 NZD
Retailer 16$2,016 NZD
Retailer 11$2,026 NZD
Retailer 12$2,028 NZD
Retailer 5$2,165 NZD
Retailer 20$2,649 NZD
Retailer 15$2,729 NZD
Retailer 13$2,858 NZD
Retailer 19$3,404 NZD
Retailer 2$3,762 NZD
Retailer 18$3,771 NZD
Retailer 10$3,799 NZD
Retailer 21$4,131 NZD
Retailer 4$4,581 NZD
Retailer 9$5,354 NZD
Retailer 7$5,807 NZD
Retailer 17$6,330 NZD
Retailer 3$6,449 NZD
Retailer 8$9,954 NZD
Brilliant Earth$11,444 NZD

27 data points across 21 retailers

21 retailers$1,790 NZD to $11,444 NZD

A
Cheapest Retailer
-
$1,790 NZD
$1,009 USD
Final sale: no returns
Retailer 2
-
$1,820 NZD
$1,026 USD
View
Price last confirmed 24 days ago
A
Retailer 3
-
$2,016 NZD
£895 GBP
View
Retailer 4
-
$2,026 NZD
$1,142 USD
View
Price last confirmed 19 days ago
Retailer 5
-
$2,028 NZD
$1,143 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$2,165 NZD
$1,220 USD
View
A
Retailer 7
-
$2,649 NZD
$1,493 USD
View
B+
Retailer 8
-
$2,729 NZD
$1,538 USD
View
A
Retailer 9
-
$2,858 NZD
£1,268 GBP
View
A
Retailer 10
-
$3,404 NZD
€1,827 EUR
View
A
Retailer 11
-
$3,762 NZD
A$3,262 AUD
View
A
Retailer 12
-
$3,771 NZD
ZAR 34,339 ZAR
View
Retailer 13
-
$3,799 NZD
$2,141 USD
View
Price last confirmed 19 days ago
A
Retailer 14
-
$4,131 NZD
$2,328 USD
View
B+
Retailer 15
-
$4,581 NZD
$2,582 USD
View
Retailer 16
-
$5,354 NZD
£2,376 GBP
View
Price last confirmed 8 days ago
B+
Retailer 17
-
$5,807 NZD
$3,273 USD
View
B+
Retailer 18
-
$6,330 NZD
£2,809 GBP
View
B+
Retailer 19
-
$6,449 NZD
$3,635 USD
View
B
Retailer 20
-
$9,954 NZD
$5,610 USD
View
Most Expensive
B
Brilliant Earth
21795140A · Oct 31
$11,444 NZD
$6,450 USD
View
20 more retailers have this diamond
Prices start from $1,790 NZDSave up to $9,654 NZD

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
$1,790 NZD