CaratHunter
Plans
Marquise|Lab Grown|IGI

1.56ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436046300

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436046300

Diamond specifications and retailer prices

From $2,151 NZD
$1,210 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $2,151 NZD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.56ct lab-grown marquise diamond

This 1.56ct lab-grown marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046300 or 436046300. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.56
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046300
Dimensions11.11 × 6.15 × 3.91 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
11.11 mm6.15 mm1.56 ctI / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436046300
Side View
Table 59.5%Crown 34.6°Girdle: STK-VTKPavilion 40.6°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,151 NZD|Low: $1,912 NZD|High: $8,020 NZD|Avg: $4,700 NZD|-35.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
July 13, 2026
Retailer 2$1,912 NZD
Brilliant Earth$2,151 NZD
Retailer 3$3,084 NZD
Retailer 6$3,812 NZD
Retailer 4$3,917 NZD
Retailer 5$5,174 NZD
Retailer 7$7,947 NZD

39 data points across 7 retailers

1 retailer

B+
Brilliant Earth
19761069A · Oct 31
$2,151 NZD
$1,210 USD
View

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.

B+
1.56ct Marquise
$2,151 NZD