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Marquise|Natural|GIA

0.78ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1172107165

Certificate GIA 1172107165

Diamond specifications and retailer prices

From $2,300 USD
As of October 28, 2026
Save $2,611 USD (53%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,911 USD at MOH London · As of October 26, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1172107165. Listed at 5 retailers as of October 26, 2026, with prices from $2,300 to $4,911, a $2,611 spread on the same certified stone. MOH London lists it at $4,911. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1172107165
Dimensions8.06 × 4.45 × 3.56 mm
L/W Ratio1.81
Culet sizeNone
Top View
8.06 mm4.45 mm0.78 ctE / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 1172107165
Side View
Table 58.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 80.0%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: $4,911 USD|Low: $2,300 USD|High: $4,963 USD|Avg: $3,156 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 3$2,300 USD
Retailer 4$2,361 USD
Retailer 7$2,515 USD
Retailer 8$2,995 USD
Retailer 5$3,124 USD
Retailer 2$3,273 USD
Retailer 6$3,766 USD
MOH London$4,911 USD

21 data points across 8 retailers

5 retailers$2,300 USD to $4,911 USD

B+
Cheapest Retailer
-
$2,300 USD
B+
Retailer 2
-
$2,361 USD
View
Retailer 3
-
$3,124 USD
A$4,806 AUD
View
Price last confirmed 30 days ago
B
Retailer 4
-
$3,273 USD
€3,117 EUR
View
Most Expensive
B
MOH London
3FAA954E6 · Oct 26
$4,911 USD
£3,867 GBP
View
4 more retailers have this diamond
Prices start from $2,300 USDSave up to $2,611 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
$2,300 USD