CaratHunter
Plans
Marquise|Lab Grown|IGI

1.31ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG524239249

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG524239249

Diamond specifications and retailer prices

From $555 NZD
As of November 4, 2026
Save $2,018 NZD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,573 NZD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.31ct lab-grown marquise diamond

This 1.31ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG524239249 or 524239249. Listed at 17 retailers as of November 4, 2026, with prices from $555 to $2,573, a $2,018 spread on the same certified stone. Reve Diamonds lists it at $2,573. 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

1.31
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG524239249
Dimensions11.15 × 5.86 × 3.56 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.15 mm5.86 mm1.31 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG524239249
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 60.8%

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 4
Current: $1,074 NZD|Low: $477 NZD|High: $2,496 NZD|Avg: $1,152 NZD|+2.2%
Retailer 1
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 6, 2026
Retailer 13$496 NZD
Retailer 6$555 NZD
Retailer 4$576 NZD
Retailer 14$615 NZD
Retailer 10$875 NZD
Retailer 11$898 NZD
Retailer 12$1,009 NZD
Retailer 3$1,016 NZD
Retailer 1$1,074 NZD
Retailer 5$1,199 NZD
Retailer 8$1,596 NZD
Retailer 2$1,980 NZD
Retailer 7$2,466 NZD
Retailer 9$2,473 NZD

42 data points across 14 retailers

17 retailers$555 NZD to $2,573 NZD

Retailer 1
-
$496 NZD
Price last confirmed 16 days ago
A
Retailer 2
-
$555 NZD
View
Final sale: no returns
Retailer 3
-
$576 NZD
View
Price last confirmed 16 days ago
Retailer 4
-
$615 NZD
View
Price last confirmed 15 days ago
Retailer 5
-
$615 NZD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$875 NZD
View
B+
Retailer 7
-
$898 NZD
View
Retailer 8
-
$1,009 NZD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$1,016 NZD
View
B+
Retailer 10
-
$1,074 NZD
View
B+
Retailer 11
-
$1,199 NZD
View
B
Retailer 12
-
$1,596 NZD
View
Retailer 13
-
$1,980 NZD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$2,069 NZD
View
B
Retailer 15
-
$2,466 NZD
View
B
Retailer 16
-
$2,473 NZD
View
Most Expensive
B
Reve Diamonds
4DB39F678 · Nov 6
$2,573 NZD
$1,446 USD
View
16 more retailers have this diamond
Prices start from $555 NZDSave up to $2,018 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
1.31ct Marquise
$555 NZD