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Marquise|Lab Grown|GCAL

0.37ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • GCAL 302820021

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 302820021

Diamond specifications and retailer prices

From $145 NZD
$82 USD
As of October 30, 2026
Save $1,330 NZD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,476 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.37ct lab-grown marquise diamond

This 0.37ct lab-grown marquise sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GCAL 302820021. Listed at 10 retailers as of October 29, 2026, with prices from $145 to $1,476, a $1,330 spread on the same certified stone. MOH London lists it at $1,476. 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

0.37
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle33.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 302820021
Dimensions8.19 × 3.67 × 2.18 mm
L/W Ratio2.23
Culet sizeNone
Top View
8.19 mm3.67 mm0.37 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGCAL 302820021
Side View
Table 59.0%Crown 33.6°Girdle: THN-THKPavilion 40.3°Culet: NoneDepth 59.4%

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: Oct 30
Current: $1,476 NZD|Low: $144 NZD|High: $1,530 NZD|Avg: $521 NZD|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9$145 NZD
Retailer 6$169 NZD
Retailer 10$193 NZD
Retailer 3$211 NZD
Retailer 4$285 NZD
Retailer 12$331 NZD
Retailer 7$426 NZD
Retailer 5$515 NZD
Retailer 8$515 NZD
Retailer 11$580 NZD
Retailer 2$642 NZD
MOH London$1,476 NZD

22 data points across 12 retailers

10 retailers$145 NZD to $1,476 NZD

A
Cheapest Retailer
-
$145 NZD
$82 USD
A
Retailer 2
-
$169 NZD
$95 USD
View
A
Retailer 3
-
$193 NZD
$109 USD
View
A
Retailer 4
-
$211 NZD
$119 USD
View
B+
Retailer 5
-
$331 NZD
CA$259 CAD
View
B+
Retailer 6
-
$426 NZD
$240 USD
View
B
Retailer 7
-
$515 NZD
$290 USD
View
B
Retailer 8
-
$515 NZD
$290 USD
View
B
Retailer 9
-
$642 NZD
$362 USD
View
Most Expensive
B
MOH London
302820021 · Oct 29
$1,476 NZD
£655 GBP
View
9 more retailers have this diamond
Prices start from $145 NZDSave up to $1,330 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
0.37ct Marquise
$145 NZD