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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 HK$33,413 HKD
CA$5,915 CAD
As of October 30, 2026
Save HK$32,579 HKD (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$90,231 HKD 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
Colour
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: HK$65,992 HKD|Low: HK$28,394 HKD|High: HK$129,454 HKD|Avg: HK$57,625 HKD|+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 6HK$28,394 HKD
Retailer 5HK$33,132 HKD
Retailer 4HK$33,413 HKD
Retailer 8HK$36,632 HKD
Retailer 7HK$46,646 HKD
Retailer 2HK$54,200 HKD
Retailer 1HK$65,992 HKD
Taylor and HartHK$90,231 HKD
Retailer 3HK$129,454 HKD

16 data points across 9 retailers

6 retailersHK$33,413 HKD to HK$65,992 HKD

Retailer 1
-
HK$33,132 HKD
$4,223 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
HK$33,413 HKD
CA$5,915 CAD
View
B
Retailer 3
-
HK$36,632 HKD
$4,669 USD
View
B
Retailer 4
-
HK$65,992 HKD
£6,623 GBP
View
Most Expensive
Taylor and Hart
8OE2CDX · Oct 30
HK$90,231 HKD
$11,501 USD
View
Price under review
4 more retailers have this diamond
Prices start from HK$33,413 HKDSave up to HK$32,579 HKD

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
HK$33,413 HKD