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Marquise|Natural|GIA

0.78ct F SI2 Marquise Natural Diamond

F/SI2 • GIA 1242089375

Certificate GIA 1242089375

Diamond specifications and retailer prices

From $910 USD
As of November 1, 2026
Save $1,079 USD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,989 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct natural marquise diamond

This 0.78ct natural marquise sits in the just-under-one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included) and certified by GIA 1242089375. Listed at 9 retailers as of October 29, 2026, with prices from $910 to $1,989, a $1,079 spread on the same certified stone. MOH London lists it at $1,989. 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
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1242089375
Dimensions8.61 × 5.02 × 3.24 mm
L/W Ratio1.72
Girdle conditionFaceted
Culet sizeNone
Top View
8.61 mm5.02 mm0.78 ctF / SI2
OriginNatural
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1242089375
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.6%

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: Nov 1
Current: $1,989 USD|Low: $910 USD|High: $2,002 USD|Avg: $1,236 USD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$910 USD
Retailer 9$978 USD
Retailer 10$988 USD
Retailer 7$1,118 USD
Retailer 4$1,200 USD
Retailer 8$1,200 USD
Retailer 2$1,232 USD
Retailer 5$1,240 USD
Retailer 3$1,514 USD
MOH London$1,989 USD

27 data points across 10 retailers

9 retailers$910 USD to $1,989 USD

A
Cheapest Retailer
-
$910 USD
B+
Retailer 2
-
$988 USD
View
B+
Retailer 3
-
$1,118 USD
View
B+
Retailer 4
-
$1,200 USD
View
B+
Retailer 5
-
$1,200 USD
View
B+
Retailer 6
-
$1,232 USD
£970 GBP
View
B+
Retailer 7
-
$1,240 USD
View
B+
Retailer 8
-
$1,514 USD
€1,442 EUR
View
Most Expensive
B
MOH London
560BBC953 · Oct 29
$1,989 USD
£1,566 GBP
View
8 more retailers have this diamond
Prices start from $910 USDSave up to $1,079 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.

A
0.78ct Marquise
$910 USD