Marquise|Lab Grown|GCAL

1.78ct E FL Marquise Lab Grown Diamond

EX • E/FL • GCAL 360726380

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 360726380

Diamond specifications and retailer prices

From $4,259 USD
CA$5,915 CAD
As of October 30, 2026
Save $4,152 USD (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $11,501 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GCAL 360726380. Listed at 6 retailers as of October 29, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 360726380
Dimensions12.14 × 6.45 × 3.95 mm
L/W Ratio1.88
Culet sizeNone
Top View
12.14 mm6.45 mm1.78 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 360726380
Side View
Table 61.0%Crown 34.5°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 61.3%

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: Oct 30
Current: $8,411 USD|Low: $3,619 USD|High: $16,500 USD|Avg: $7,345 USD|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Taylor and Hart
October 29, 2026
Retailer 6$3,619 USD
Retailer 5$4,223 USD
Retailer 4$4,259 USD
Retailer 8$4,669 USD
Retailer 7$5,945 USD
Retailer 2$6,908 USD
Retailer 1$8,411 USD
Taylor and Hart$11,501 USD
Retailer 3$16,500 USD

16 data points across 9 retailers

6 retailers$4,259 USD to $8,411 USD

Retailer 1
-
$4,223 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$4,259 USD
CA$5,915 CAD
View
B
Retailer 3
-
$4,669 USD
View
B
Retailer 4
-
$8,411 USD
£6,623 GBP
View
Most Expensive
Taylor and Hart
8OE2CDX · Oct 30
$11,501 USD
View
Price under review
4 more retailers have this diamond
Prices start from $4,259 USDSave up to $4,152 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.

B+
1.78ct Marquise
$4,259 USD