Marquise|Lab Grown|GCAL

0.39ct F SI2 Marquise Lab Grown Diamond

VG • F/SI2 • GCAL 312570072

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 312570072

Diamond specifications and retailer prices

From $106 USD
As of November 2, 2026
Save $362 USD (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,222 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.39ct lab-grown marquise diamond

This 0.39ct lab-grown marquise sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GCAL 312570072. Listed at 7 retailers as of October 31, 2026, with a 342% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.39
Carat
F
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 312570072
Dimensions7.23 × 3.69 × 2.33 mm
L/W Ratio1.96
Culet sizeNone
Top View
7.23 mm3.69 mm0.39 ctF / SI2
OriginLab Grown
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateGCAL 312570072
Side View
Table 65.0%Crown 34.5°Girdle: Very ThickPavilion 40.2°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,222 USD|Low: $104 USD|High: $1,261 USD|Avg: $333 USD|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5$106 USD
Retailer 4$123 USD
Retailer 7$130 USD
Retailer 2$140 USD
Retailer 8$197 USD
Retailer 6$220 USD
Retailer 9$224 USD
Retailer 3$468 USD
MOH London$1,222 USD

18 data points across 9 retailers

7 retailers$106 USD to $468 USD

A
Cheapest Retailer
-
$106 USD
A
Retailer 2
-
$123 USD
View
B+
Retailer 3
-
$130 USD
View
B+
Retailer 4
-
$140 USD
View
B+
Retailer 5
-
$220 USD
CA$305 CAD
View
B
Retailer 6
-
$468 USD
View
Most Expensive
MOH London
312570072 · Oct 29
$1,222 USD
£962 GBP
View
Price under review
6 more retailers have this diamond
Prices start from $106 USDSave up to $362 USD

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
0.39ct Marquise
$106 USD