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Marquise|Lab Grown|GCAL

3.18ct D IF Marquise Lab Grown Diamond

ID • D/IF • GCAL 360876139

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 360876139

Diamond specifications and retailer prices

From $8,528 SGD
$6,671 USD
As of October 31, 2026
Save $14,850 SGD (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $39,243 SGD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.18ct lab-grown marquise diamond

This 3.18ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GCAL 360876139. Listed at 10 retailers as of October 30, 2026, with a 174% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 360876139
Dimensions14.38 × 7.82 × 4.95 mm
L/W Ratio1.84
Culet sizeNone
Top View
14.38 mm7.82 mm3.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 360876139
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.3%

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 31
Current: $22,633 SGD|Low: $8,041 SGD|High: $56,889 SGD|Avg: $20,963 SGD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 1, 2026
Retailer 10$8,041 SGD
Retailer 4$8,528 SGD
Retailer 9$9,846 SGD
Retailer 7$12,123 SGD
Retailer 5$13,945 SGD
Retailer 3$16,453 SGD
Retailer 6$16,453 SGD
Retailer 1$22,633 SGD
Retailer 2$23,378 SGD
Taylor and Hart$39,243 SGD
Retailer 8$56,889 SGD

15 data points across 11 retailers

10 retailers$8,528 SGD to $23,378 SGD

A
Cheapest Retailer
-
$8,528 SGD
$6,671 USD
B+
Retailer 2
-
$9,846 SGD
CA$10,697 CAD
View
B+
Retailer 3
-
$12,123 SGD
$9,483 USD
View
B+
Retailer 4
-
$13,945 SGD
$10,908 USD
View
B+
Retailer 5
-
$16,453 SGD
$12,870 USD
View
B
Retailer 6
-
$16,453 SGD
$12,870 USD
View
B
Retailer 7
-
$22,633 SGD
£13,940 GBP
View
B
Retailer 8
-
$23,378 SGD
$18,287 USD
View
Most Expensive
Taylor and Hart
FUBSJAJ · Oct 31
$39,243 SGD
$30,697 USD
View
Price under review
8 more retailers have this diamond
Prices start from $8,528 SGDSave up to $14,850 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.

A
3.18ct Marquise
$8,528 SGD