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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 $5,444 SGD
CA$5,915 CAD
As of October 30, 2026
Save $5,308 SGD (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $14,702 SGD 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: $10,753 SGD|Low: $4,627 SGD|High: $21,094 SGD|Avg: $9,390 SGD|+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$4,627 SGD
Retailer 5$5,399 SGD
Retailer 4$5,444 SGD
Retailer 8$5,969 SGD
Retailer 7$7,601 SGD
Retailer 2$8,831 SGD
Retailer 1$10,753 SGD
Taylor and Hart$14,702 SGD
Retailer 3$21,094 SGD

16 data points across 9 retailers

6 retailers$5,444 SGD to $10,753 SGD

Retailer 1
-
$5,399 SGD
$4,223 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$5,444 SGD
CA$5,915 CAD
View
B
Retailer 3
-
$5,969 SGD
$4,669 USD
View
B
Retailer 4
-
$10,753 SGD
£6,623 GBP
View
Most Expensive
Taylor and Hart
8OE2CDX · Oct 30
$14,702 SGD
$11,501 USD
View
Price under review
4 more retailers have this diamond
Prices start from $5,444 SGDSave up to $5,308 SGD

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
$5,444 SGD