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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 6552497564

Certificate GIA 6552497564

Diamond specifications and retailer prices

From HK$4,441 HKD
$566 USD
As of November 2, 2026
Save HK$12,209 HKD (73%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$16,649 HKD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552497564. Listed at 21 retailers as of October 30, 2026, with prices from HK$4,441 to HK$16,649, a HK$12,209 spread on the same certified stone. NZ Jewellers lists it at HK$16,649. 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
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.5°
OriginNatural
Grading LabGIA
CertificateGIA 6552497564
Dimensions7.97 × 4.23 × 2.69 mm
L/W Ratio1.88
Girdle conditionFaceted
Top View
7.97 mm4.23 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552497564
Side View
Table 61.0%Crown 36.6°Girdle: MED-THKPavilion 41.5°Culet: NDepth 63.6%

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: Nov 2
Current: HK$16,649 HKD|Low: HK$3,813 HKD|High: HK$17,144 HKD|Avg: HK$6,508 HKD|-2.9%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 10HK$4,441 HKD
Retailer 15HK$4,551 HKD
Retailer 7HK$4,810 HKD
Retailer 11HK$4,821 HKD
Retailer 9HK$5,178 HKD
Retailer 12HK$5,178 HKD
Retailer 14HK$5,304 HKD
Retailer 17HK$5,390 HKD
Retailer 6HK$5,445 HKD
Retailer 4HK$5,547 HKD
Retailer 8HK$5,610 HKD
Retailer 5HK$5,885 HKD
Retailer 19HK$5,885 HKD
Retailer 20HK$6,120 HKD
Retailer 2HK$6,340 HKD
Retailer 13HK$6,495 HKD
Retailer 3HK$6,810 HKD
Retailer 18HK$7,110 HKD
Retailer 16HK$12,256 HKD
NZ JewellersHK$16,649 HKD

29 data points across 20 retailers

21 retailersHK$4,441 HKD to HK$16,649 HKD

A
Cheapest Retailer
-
HK$4,441 HKD
$566 USD
Final sale: no returns
A
Retailer 2
-
HK$4,551 HKD
$580 USD
View
A
Retailer 3
-
HK$4,810 HKD
$613 USD
View
B+
Retailer 4
-
HK$4,821 HKD
View
A
Retailer 5
-
HK$5,178 HKD
$660 USD
View
A
Retailer 6
-
HK$5,178 HKD
$660 USD
View
A
Retailer 7
-
HK$5,304 HKD
$676 USD
View
A
Retailer 8
-
HK$5,390 HKD
$687 USD
View
A
Retailer 9
-
HK$5,445 HKD
$694 USD
View
B+
Retailer 10
-
HK$5,547 HKD
$707 USD
View
A
Retailer 11
-
HK$5,610 HKD
$715 USD
View
B+
Retailer 12
-
HK$5,885 HKD
$750 USD
View
B+
Retailer 13
-
HK$5,885 HKD
$750 USD
View
B+
Retailer 14
-
HK$6,120 HKD
$780 USD
View
B+
Retailer 15
-
HK$6,340 HKD
£636 GBP
View
B+
Retailer 16
-
HK$6,495 HKD
£652 GBP
View
B+
Retailer 17
-
HK$6,810 HKD
$868 USD
View
Retailer 18
-
HK$7,084 HKD
£711 GBP
View
Price last confirmed 37 days ago
B+
Retailer 19
-
HK$7,110 HKD
€863 EUR
View
B
Retailer 20
-
HK$12,256 HKD
£1,230 GBP
View
Most Expensive
B
NZ Jewellers
76c2553c-4cf3-400f-8ed5-5859e1cdf99e · Oct 30
HK$16,649 HKD
$2,122 USD
View
20 more retailers have this diamond
Prices start from HK$4,441 HKDSave up to HK$12,209 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
0.51ct Marquise
HK$4,441 HKD