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Marquise|Natural|GIA

0.80ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6551378239

Certificate GIA 6551378239

Diamond specifications and retailer prices

From HK$15,017 HKD
$1,914 USD
As of October 26, 2026
Save HK$9,505 HKD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$34,749 HKD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 0.8ct natural marquise diamond

This 0.8ct 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 6551378239. Listed at 12 retailers as of October 26, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.80
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551378239
Dimensions9.42 × 4.90 × 3.01 mm
L/W Ratio1.92
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
9.42 mm4.90 mm0.80 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551378239
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.5%

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: Oct 26
Current: HK$34,749 HKD|Low: HK$15,017 HKD|High: HK$34,749 HKD|Avg: HK$21,215 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 27, 2026
Retailer 9HK$15,017 HKD
Retailer 13HK$15,236 HKD
Retailer 5HK$16,248 HKD
Retailer 6HK$16,502 HKD
Retailer 4HK$16,617 HKD
Retailer 10HK$17,386 HKD
Retailer 2HK$19,175 HKD
Retailer 3HK$20,437 HKD
Retailer 8HK$20,479 HKD
Retailer 11HK$22,539 HKD
Retailer 7HK$24,522 HKD
Retailer 12HK$28,577 HKD
NZ JewellersHK$34,749 HKD

39 data points across 13 retailers

12 retailersHK$15,017 HKD to HK$24,522 HKD

A
Cheapest Retailer
-
HK$15,017 HKD
$1,914 USD
A
Retailer 2
-
HK$15,236 HKD
$1,942 USD
View
A
Retailer 3
-
HK$16,248 HKD
$2,071 USD
View
A
Retailer 4
-
HK$16,502 HKD
£1,656 GBP
View
B+
Retailer 5
-
HK$17,386 HKD
$2,216 USD
View
B+
Retailer 6
-
HK$19,175 HKD
$2,444 USD
View
Retailer 7
-
HK$20,437 HKD
A$4,008 AUD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
HK$20,479 HKD
£2,055 GBP
View
Retailer 9
-
HK$22,539 HKD
€2,736 EUR
View
Price last confirmed 8 days ago
B+
Retailer 10
-
HK$24,522 HKD
ZAR 50,493 ZAR
View
Retailer 11
-
HK$28,577 HKD
£2,868 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
74675e3d-f34a-4908-a9c6-dd511d231346 · Oct 24
HK$34,749 HKD
$4,429 USD
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from HK$15,017 HKDSave up to HK$9,505 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.

A
0.80ct Marquise
HK$15,017 HKD