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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 HK$18,045 HKD
$2,300 USD
As of October 28, 2026
Save HK$20,486 HKD (53%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$38,531 HKD 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 HK$18,045 to HK$38,531, a HK$20,486 spread on the same certified stone. MOH London lists it at HK$38,531. 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
Colour
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: HK$38,531 HKD|Low: HK$18,045 HKD|High: HK$38,939 HKD|Avg: HK$24,759 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 3HK$18,045 HKD
Retailer 4HK$18,524 HKD
Retailer 7HK$19,732 HKD
Retailer 8HK$23,495 HKD
Retailer 5HK$24,507 HKD
Retailer 2HK$25,678 HKD
Retailer 6HK$29,547 HKD
MOH LondonHK$38,531 HKD

21 data points across 8 retailers

5 retailersHK$18,045 HKD to HK$38,531 HKD

B+
Cheapest Retailer
-
HK$18,045 HKD
$2,300 USD
B+
Retailer 2
-
HK$18,524 HKD
$2,361 USD
View
Retailer 3
-
HK$24,507 HKD
A$4,806 AUD
View
Price last confirmed 30 days ago
B
Retailer 4
-
HK$25,678 HKD
€3,117 EUR
View
Most Expensive
B
MOH London
3FAA954E6 · Oct 26
HK$38,531 HKD
£3,867 GBP
View
4 more retailers have this diamond
Prices start from HK$18,045 HKDSave up to HK$20,486 HKD

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
HK$18,045 HKD