Marquise|Lab Grown

0.78ct F SI2 Marquise Lab Grown Diamond

F/SI2 • EC290DD9BB

Diamond specifications and retailer prices

From $113 USD
As of November 2, 2026
Save $337 USD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $450 USD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.78ct lab-grown marquise diamond

This 0.78ct lab-grown marquise sits in the just-under-one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included). Listed at 4 retailers as of October 31, 2026, with prices from $113 to $450, a $337 spread on the same certified stone. NZ Jewellers lists it at $450. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.78
Carat
F
Color
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateEC290DD9BB
Dimensions9.16 × 4.74 × 3.01 mm
L/W Ratio1.93
Top View
9.16 mm4.74 mm0.78 ctF / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateEC290DD9BB
Side View
TableCrownGirdlePavilionCulet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $450 USD|Low: $108 USD|High: $450 USD|Avg: $199 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2$113 USD
Retailer 4$131 USD
Retailer 3$149 USD
NZ Jewellers$450 USD

6 data points across 4 retailers

4 retailers$113 USD to $450 USD

B+
Cheapest Retailer
-
$113 USD
B+
Retailer 2
-
$131 USD
View
B+
Retailer 3
-
$149 USD
View
Most Expensive
C
NZ Jewellers
b0d99c02-1942-4040-a986-df04677d7a46 · Oct 31
$450 USD
View
3 more retailers have this diamond
Prices start from $113 USDSave up to $337 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+
0.78ct Marquise
$113 USD