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Marquise|Lab Grown|IGI

0.51ct I SI2 Marquise Lab Grown Diamond

VG • I/SI2 • IGI LG442067279

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG442067279

Diamond specifications and retailer prices

From $434 NZD
$244 USD
As of November 2, 2026
Save $1,729 NZD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,162 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG442067279 or 442067279. Listed at 10 retailers as of October 29, 2026, with prices from $434 to $2,162, a $1,729 spread on the same certified stone. MOH London lists it at $2,162. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.6°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442067279
Dimensions8.76 × 4.14 × 2.50 mm
L/W Ratio2.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.76 mm4.14 mm0.51 ctI / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG442067279
Side View
Table 62.0%Crown 33.6°Girdle: THN-STKPavilion 42°Culet: NoneDepth 60.4%

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: Nov 2
Current: $2,162 NZD|Low: $416 NZD|High: $2,178 NZD|Avg: $1,029 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 6$434 NZD
Retailer 10$503 NZD
Retailer 7$537 NZD
Retailer 11$537 NZD
Retailer 2$569 NZD
Retailer 9$903 NZD
Retailer 4$1,019 NZD
Retailer 3$1,066 NZD
Retailer 8$1,726 NZD
Retailer 5$1,731 NZD
MOH London$2,162 NZD

22 data points across 11 retailers

10 retailers$434 NZD to $2,162 NZD

A
Cheapest Retailer
-
$434 NZD
$244 USD
B+
Retailer 2
-
$503 NZD
$283 USD
View
Retailer 3
-
$537 NZD
$302 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$537 NZD
$302 USD
View
B+
Retailer 5
-
$569 NZD
$320 USD
View
B
Retailer 6
-
$903 NZD
$508 USD
View
Retailer 7
-
$1,019 NZD
€546 EUR
View
Price last confirmed 8 days ago
B
Retailer 8
-
$1,726 NZD
$971 USD
View
B
Retailer 9
-
$1,731 NZD
$974 USD
View
Most Expensive
B
MOH London
LG442067279 · Oct 29
$2,162 NZD
£958 GBP
View
9 more retailers have this diamond
Prices start from $434 NZDSave up to $1,729 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
0.51ct Marquise
$434 NZD