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Marquise|Natural|GIA

1.51ct I IF Marquise Natural Diamond

EX • I/IF • GIA 7551189864

Certificate GIA 7551189864

Diamond specifications and retailer prices

From HK$70,733 HKD
As of November 5, 2026
Save HK$24,868 HKD (26%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$116,464 HKD at With Clarity · As of October 30, 2026
View at With Clarity

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551189864. Listed at 16 retailers as of November 5, 2026, with a 35% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.46°
Pavilion angle39.84°
OriginNatural
Grading LabGIA
CertificateGIA 7551189864
Dimensions11.17 × 5.90 × 3.77 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.17 mm5.90 mm1.51 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551189864
Side View
Table 60.0%Crown 39.46°Girdle: STK-THKPavilion 39.84°Culet: NoneDepth 63.8%

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 5
Current: HK$70,733 HKD|Low: HK$64,972 HKD|High: HK$121,268 HKD|Avg: HK$85,199 HKD|-5.3%
Retailer 1
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
With Clarity
November 5, 2026
Retailer 13HK$64,972 HKD
Retailer 15HK$68,765 HKD
Retailer 10HK$69,596 HKD
Retailer 1HK$70,733 HKD
Retailer 12HK$71,508 HKD
Retailer 2HK$71,838 HKD
Retailer 8HK$72,574 HKD
Retailer 14HK$81,454 HKD
Retailer 9HK$82,747 HKD
Retailer 4HK$83,202 HKD
Retailer 3HK$84,009 HKD
Retailer 6HK$86,062 HKD
Retailer 11HK$95,797 HKD
Retailer 7HK$98,540 HKD
Retailer 5HK$102,121 HKD
With ClarityHK$116,464 HKD

21 data points across 16 retailers

16 retailersHK$70,733 HKD to HK$95,601 HKD

Retailer 1
-
HK$64,972 HKD
Price last confirmed 8 days ago
Retailer 2
-
HK$68,765 HKD
View
Price last confirmed 8 days ago
Retailer 3
-
HK$69,596 HKD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$70,733 HKD
View
A
Retailer 5
-
HK$71,508 HKD
View
Retailer 6
-
HK$71,838 HKD
View
Price last confirmed 8 days ago
A
Retailer 7
-
HK$72,574 HKD
View
A
Retailer 8
-
HK$81,454 HKD
View
B+
Retailer 9
-
HK$82,747 HKD
View
B+
Retailer 10
-
HK$83,202 HKD
View
B+
Retailer 11
-
HK$84,009 HKD
View
Retailer 12
-
HK$86,062 HKD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
HK$95,601 HKD
View
Retailer 14
-
HK$95,797 HKD
View
Price last confirmed 8 days ago
Retailer 15
-
HK$102,121 HKD
View
Price last confirmed 8 days ago
Most Expensive
With Clarity
7551189864 · Oct 30
HK$116,464 HKD
$14,860 USD
View
Price last confirmed 7 days ago
15 more retailers have this diamond
Prices start from HK$70,733 HKDSave up to HK$24,868 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
1.51ct Marquise
HK$70,733 HKD