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Marquise|Natural|GIA

0.78ct E SI1 Marquise Natural Diamond

GD • E/SI1 • GIA 5151705403

Certificate GIA 5151705403

Diamond specifications and retailer prices

From HK$16,060 HKD
$2,047 USD
As of October 30, 2026
Save HK$12,472 HKD (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$34,924 HKD at MOH London · As of October 19, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5151705403. Listed at 5 retailers as of October 27, 2026, with a 78% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5151705403
Dimensions8.89 × 5.20 × 2.82 mm
L/W Ratio1.71
Top View
8.89 mm5.20 mm0.78 ctE / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 5151705403
Side View
Table 61.0%CrownGirdle: THN-VTKPavilionCulet: SmallDepth 54.2%

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 30
Current: HK$34,924 HKD|Low: HK$14,601 HKD|High: HK$73,107 HKD|Avg: HK$32,758 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 28, 2026
Retailer 5HK$16,060 HKD
Retailer 4HK$22,215 HKD
Retailer 2HK$24,345 HKD
Retailer 3HK$24,574 HKD
Retailer 6HK$28,532 HKD
MOH LondonHK$34,924 HKD
Retailer 7HK$73,107 HKD

37 data points across 7 retailers

5 retailersHK$16,060 HKD to HK$28,532 HKD

B+
Cheapest Retailer
-
HK$16,060 HKD
$2,047 USD
Final sale: no returns
Retailer 2
-
HK$22,215 HKD
A$4,356 AUD
View
Price last confirmed 23 days ago
C
Retailer 3
-
HK$24,345 HKD
£2,443 GBP
View
C
Retailer 4
-
HK$28,532 HKD
$3,637 USD
View
Most Expensive
MOH London
9CE974553 · Oct 19
HK$34,924 HKD
£3,505 GBP
View
Price last confirmed 12 days ago
4 more retailers have this diamond
Prices start from HK$16,060 HKDSave up to HK$12,472 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$16,060 HKD