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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 $1,267 NZD
£561 GBP
As of October 27, 2026
Save $4,723 NZD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,990 NZD at Brilliant Earth · As of November 2, 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 13 retailers as of October 27, 2026, with prices from $1,267 to $5,990, a $4,723 spread on the same certified stone. Brilliant Earth lists it at $5,990. 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

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 27
Current: $5,990 NZD|Low: $953 NZD|High: $10,006 NZD|Avg: $3,107 NZD|-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
November 2, 2026
Retailer 3$953 NZD
Retailer 9$1,267 NZD
Retailer 8$1,306 NZD
Retailer 6$1,413 NZD
Retailer 11$1,577 NZD
Retailer 10$1,742 NZD
Retailer 7$2,341 NZD
Retailer 2$2,410 NZD
Retailer 4$3,444 NZD
Retailer 14$3,636 NZD
Retailer 13$3,703 NZD
Retailer 12$3,882 NZD
Retailer 5$4,808 NZD
Brilliant Earth$5,990 NZD

13 data points across 14 retailers

13 retailers$1,267 NZD to $5,990 NZD

A
Cheapest Retailer
-
$1,267 NZD
£561 GBP
Retailer 2
-
$1,306 NZD
$735 USD
View
Price last confirmed 5 days ago
B+
Retailer 3
-
$1,413 NZD
$795 USD
View
A
Retailer 4
-
$1,577 NZD
€845 EUR
View
A
Retailer 5
-
$1,742 NZD
£772 GBP
View
A
Retailer 6
-
$2,341 NZD
$1,317 USD
View
A
Retailer 7
-
$2,410 NZD
$1,356 USD
View
B+
Retailer 8
-
$3,444 NZD
$1,938 USD
View
B+
Retailer 9
-
$3,636 NZD
$2,046 USD
View
Retailer 10
-
$3,703 NZD
$2,084 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$3,882 NZD
£1,720 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
$4,808 NZD
$2,705 USD
View
Most Expensive
B
Brilliant Earth
22183942A · Nov 2
$5,990 NZD
$3,370 USD
View
12 more retailers have this diamond
Prices start from $1,267 NZDSave up to $4,723 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
3.51ct Marquise
$1,267 NZD