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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 6555854230

Certificate GIA 6555854230

Diamond specifications and retailer prices

From HK$53,707 HKD
$6,845 USD
As of November 1, 2026
Save HK$63,718 HKD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$117,425 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6555854230. Listed at 18 retailers as of November 1, 2026, with prices from HK$53,707 to HK$117,425, a HK$63,718 spread on the same certified stone. NZ Jewellers lists it at HK$117,425. 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

1.51
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555854230
Dimensions10.71 × 5.96 × 3.96 mm
L/W Ratio1.80
Culet sizeNone
Top View
10.71 mm5.96 mm1.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555854230
Side View
Table 55.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.5%

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 1
Current: HK$117,425 HKD|Low: HK$51,980 HKD|High: HK$117,425 HKD|Avg: HK$70,817 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 14HK$53,707 HKD
Retailer 3HK$54,970 HKD
Retailer 9HK$55,652 HKD
Retailer 7HK$58,571 HKD
Retailer 4HK$58,705 HKD
Retailer 17HK$58,712 HKD
Retailer 10HK$62,547 HKD
Retailer 19HK$63,600 HKD
Retailer 5HK$64,581 HKD
Retailer 2HK$65,461 HKD
Retailer 12HK$66,615 HKD
Retailer 8HK$66,696 HKD
Retailer 6HK$69,328 HKD
Retailer 18HK$73,385 HKD
Retailer 13HK$76,691 HKD
Retailer 11HK$77,308 HKD
Retailer 16HK$86,250 HKD
Retailer 15HK$97,842 HKD
NZ JewellersHK$117,425 HKD

17 data points across 19 retailers

18 retailersHK$53,707 HKD to HK$117,425 HKD

B+
Cheapest Retailer
-
HK$53,707 HKD
$6,845 USD
B+
Retailer 2
-
HK$54,970 HKD
$7,006 USD
View
B+
Retailer 3
-
HK$55,652 HKD
$7,093 USD
View
B+
Retailer 4
-
HK$58,571 HKD
$7,465 USD
View
B+
Retailer 5
-
HK$58,705 HKD
$7,482 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$58,712 HKD
$7,483 USD
View
B
Retailer 7
-
HK$62,547 HKD
$7,972 USD
View
B
Retailer 8
-
HK$63,600 HKD
$8,106 USD
View
B
Retailer 9
-
HK$64,581 HKD
$8,231 USD
View
B
Retailer 10
-
HK$65,461 HKD
£6,569 GBP
View
B
Retailer 11
-
HK$66,615 HKD
£6,685 GBP
View
Retailer 12
-
HK$66,696 HKD
A$13,078 AUD
View
Price last confirmed 34 days ago
B
Retailer 13
-
HK$69,328 HKD
$8,836 USD
View
B
Retailer 14
-
HK$73,385 HKD
$9,353 USD
View
B
Retailer 15
-
HK$76,691 HKD
€9,309 EUR
View
B
Retailer 16
-
HK$86,250 HKD
ZAR 177,588 ZAR
View
B
Retailer 17
-
HK$97,842 HKD
£9,819 GBP
View
Most Expensive
C
NZ Jewellers
3e8021c5-b628-48f2-a70b-ff429de73b5f · Nov 3
HK$117,425 HKD
$14,966 USD
View
17 more retailers have this diamond
Prices start from HK$53,707 HKDSave up to HK$63,718 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+
1.51ct Marquise
HK$53,707 HKD