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Marquise|Lab Grown|IGI

1.55ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG853620908

Certificate IGI LG853620908

Diamond specifications and retailer prices

From $583 NZD
As of November 6, 2026
Save $255 NZD (30%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $839 NZD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG853620908 or 853620908. Listed at 3 retailers as of November 6, 2026, with prices from $583 to $839, a $255 spread on the same certified stone. 77 Diamonds lists it at $839. 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

1.55
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG853620908
Dimensions11.52 × 6.09 × 3.79 mm
L/W Ratio1.89
Top View
11.52 mm6.09 mm1.55 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG853620908
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 62.2%

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: Nov 6
Current: $839 NZD|Low: $583 NZD|High: $839 NZD|Avg: $739 NZD
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$583 NZD
Retailer 3$793 NZD
77 Diamonds$839 NZD

1 data point across 3 retailers

3 retailers$583 NZD to $839 NZD

B+
Cheapest Retailer
-
$583 NZD
B
Retailer 2
-
$793 NZD
View
Most Expensive
B+
77 Diamonds
MQPUIFSJAHRZCHC · Nov 6
$839 NZD
£371 GBP
View
2 more retailers have this diamond
Prices start from $583 NZDSave up to $255 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.

B+
1.55ct Marquise
$583 NZD