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Marquise|Natural|GIA

0.51ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 5546310673

Certificate GIA 5546310673

Diamond specifications and retailer prices

From HK$4,851 HKD
As of November 6, 2026
Save HK$6,623 HKD (58%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$19,680 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5546310673. Listed at 22 retailers as of November 4, 2026, with a 137% 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

0.51
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546310673
Dimensions8.00 × 4.13 × 2.61 mm
L/W Ratio1.94
Top View
8.00 mm4.13 mm0.51 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546310673
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.2%

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: Nov 6
Current: HK$7,453 HKD|Low: HK$4,851 HKD|High: HK$11,631 HKD|Avg: HK$7,623 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5HK$4,851 HKD
Retailer 6HK$5,902 HKD
Retailer 7HK$6,505 HKD
Retailer 1HK$7,453 HKD
Retailer 2HK$7,469 HKD
Retailer 4HK$8,864 HKD
Retailer 3HK$11,474 HKD

44 data points across 7 retailers

22 retailersHK$4,851 HKD to HK$11,474 HKD

B+
Cheapest Retailer
-
HK$4,851 HKD
Final sale: no returns
B+
Retailer 2
-
HK$5,220 HKD
View
B+
Retailer 3
-
HK$5,682 HKD
View
Retailer 4
-
HK$5,682 HKD
View
Price last confirmed 9 days ago
B
Retailer 5
-
HK$5,753 HKD
View
B
Retailer 6
-
HK$5,902 HKD
View
B
Retailer 7
-
HK$5,941 HKD
View
B
Retailer 8
-
HK$6,458 HKD
View
B
Retailer 9
-
HK$6,505 HKD
View
B
Retailer 10
-
HK$6,521 HKD
View
B
Retailer 11
-
HK$6,560 HKD
View
B
Retailer 12
-
HK$6,999 HKD
View
B
Retailer 13
-
HK$7,054 HKD
View
B
Retailer 14
-
HK$7,054 HKD
View
B
Retailer 15
-
HK$7,289 HKD
View
B
Retailer 16
-
HK$7,453 HKD
View
B
Retailer 17
-
HK$7,469 HKD
View
B
Retailer 18
-
HK$7,681 HKD
View
B
Retailer 19
-
HK$8,864 HKD
View
C
Retailer 20
-
HK$10,079 HKD
View
C
Retailer 21
-
HK$11,474 HKD
View
Most Expensive
NZ Jewellers
24b02595-8c7f-485d-a676-2f1c4e4f1c4a · Nov 5
HK$19,680 HKD
$2,511 USD
View
Price under review
21 more retailers have this diamond
Prices start from HK$4,851 HKDSave up to HK$6,623 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+
0.51ct Marquise
HK$4,851 HKD