Marquise|Lab Grown

0.78ct G SI1 Marquise Lab Grown Diamond

EX • G/SI1 • FA3-641-641

Diamond specifications and retailer prices

From €257 EUR
$287 USD
As of October 30, 2026
Save €768 EUR (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €1,025 EUR 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade. Listed at 4 retailers as of October 30, 2026, with prices from €257 to €1,025, a €768 spread on the same certified stone. NZ Jewellers lists it at €1,025. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.78
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateFA3-641-641
Dimensions9.39 × 4.74 × 2.96 mm
L/W Ratio1.98
Top View
9.39 mm4.74 mm0.78 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateFA3-641-641
Side View
Table 56.8%CrownGirdlePavilionCuletDepth 62.5%

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: Oct 30
Current: €1,025 EUR|Low: €247 EUR|High: €1,025 EUR|Avg: €447 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2€257 EUR
Retailer 4€298 EUR
Retailer 3€319 EUR
NZ Jewellers€1,025 EUR

6 data points across 4 retailers

4 retailers€257 EUR to €1,025 EUR

B+
Cheapest Retailer
-
€257 EUR
$287 USD
B+
Retailer 2
-
€298 EUR
$333 USD
View
B
Retailer 3
-
€319 EUR
$356 USD
View
Most Expensive
C
NZ Jewellers
fc5b8223-2a28-4f11-b366-c942fdd26683 · Oct 31
€1,025 EUR
$1,145 USD
View
3 more retailers have this diamond
Prices start from €257 EURSave up to €768 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
€257 EUR