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Marquise|Lab Grown|IGI

1.54ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436074733

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436074733

Diamond specifications and retailer prices

From $2,648 NZD
$1,490 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $2,648 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 1.54ct lab-grown marquise diamond

This 1.54ct 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 LG436074733 or 436074733. 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

1.54
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074733
Dimensions11.05 × 6.14 × 3.90 mm
L/W Ratio1.80
Girdle conditionFaceted
Cert comments
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Top View
11.05 mm6.14 mm1.54 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074733
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.5%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $2,648 NZD|Low: $1,982 NZD|High: $7,920 NZD|Avg: $4,929 NZD|-19.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
June 13, 2026
Retailer 2$1,982 NZD
Brilliant Earth$2,648 NZD
Retailer 3$3,048 NZD
Retailer 4$3,770 NZD
Retailer 5$4,266 NZD
Retailer 7$5,213 NZD
Retailer 6$7,848 NZD

29 data points across 7 retailers

1 retailer

B+
Brilliant Earth
8532194A · Oct 31
$2,648 NZD
$1,490 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+
1.54ct Marquise
$2,648 NZD