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Marquise|Lab Grown|IGI

0.78ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG826603903

Certificate IGI LG826603903

Diamond specifications and retailer prices

From €889 EUR
$997 USD
As of October 31, 2026
Save €297 EUR (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €1,186 EUR at Kay Jewelers · As of November 2, 2026
View at Kay Jewelers

About this 0.78ct lab-grown marquise diamond

This 0.78ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG826603903 or 826603903. Listed at 4 retailers as of October 31, 2026, with prices from €889 to €1,186, a €297 spread on the same certified stone. Kay Jewelers lists it at €1,186. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.78
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG826603903
Dimensions9.37 × 4.85 × 3.04 mm
L/W Ratio1.93
Top View
9.37 mm4.85 mm0.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826603903
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.7%

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: Oct 31
Current: €1,186 EUR|Low: €889 EUR|High: €1,186 EUR|Avg: €1,085 EUR
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
September 28, 2026
Retailer 4€889 EUR
Retailer 2€972 EUR
Kay Jewelers€1,186 EUR
Retailer 3€1,186 EUR

3 data points across 4 retailers

4 retailers€889 EUR to €1,186 EUR

B+
Cheapest Retailer
-
€889 EUR
$997 USD
B
Retailer 2
-
€972 EUR
$1,090 USD
View
B
Retailer 3
-
€1,186 EUR
$1,330 USD
View
Most Expensive
B
Kay Jewelers
259776939 · Nov 2
€1,186 EUR
$1,330 USD
View
3 more retailers have this diamond
Prices start from €889 EURSave up to €297 EUR

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
€889 EUR