Marquise|Lab Grown|GCAL

0.38ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • GCAL 303000021

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 303000021

Diamond specifications and retailer prices

From $110 USD
As of October 30, 2026
Save $549 USD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,262 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.38ct lab-grown marquise diamond

This 0.38ct lab-grown marquise sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 303000021. Listed at 11 retailers as of October 30, 2026, with a 499% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.38
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 303000021
Dimensions7.43 × 3.78 × 2.34 mm
L/W Ratio1.97
Culet sizeNone
Top View
7.43 mm3.78 mm0.38 ctD / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL 303000021
Side View
Table 56.0%Crown 34.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.9%

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: $1,262 USD|Low: $107 USD|High: $1,299 USD|Avg: $384 USD|-1.8%
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 30, 2026
Retailer 11$110 USD
Retailer 9$127 USD
Retailer 3$130 USD
Retailer 5$145 USD
Retailer 4$205 USD
Retailer 12$219 USD
Retailer 6$350 USD
Retailer 8$350 USD
Retailer 7$484 USD
Retailer 2$500 USD
Retailer 10$659 USD
MOH London$1,262 USD

22 data points across 12 retailers

11 retailers$110 USD to $659 USD

A
Cheapest Retailer
-
$110 USD
A
Retailer 2
-
$127 USD
View
A
Retailer 3
-
$130 USD
View
A
Retailer 4
-
$145 USD
View
B+
Retailer 5
-
$219 USD
CA$304 CAD
View
B
Retailer 6
-
$350 USD
View
B
Retailer 7
-
$350 USD
View
B
Retailer 8
-
$484 USD
View
B
Retailer 9
-
$500 USD
View
B
Retailer 10
-
$659 USD
View
Most Expensive
MOH London
303000021 · Oct 29
$1,262 USD
£994 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $110 USDSave up to $549 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
0.38ct Marquise
$110 USD