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Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

EX • I/IF • GIA 6542938952

Certificate GIA 6542938952

Diamond specifications and retailer prices

From €502 EUR
HK$4,400 HKD
As of November 1, 2026
Save €911 EUR (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €2,258 EUR at NZ Jewellers · As of September 25, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542938952. Listed at 19 retailers as of October 31, 2026, with a 181% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
I
Color
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542938952
Dimensions7.62 × 4.10 × 2.69 mm
L/W Ratio1.86
Top View
7.62 mm4.10 mm0.51 ctI / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542938952
Side View
Table 60.0%CrownGirdle: STK-VTKPavilion 39.6°Culet: NoneDepth 65.6%

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 1
Current: €926 EUR|Low: €502 EUR|High: €1,427 EUR|Avg: €895 EUR|-2.3%
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 11€502 EUR
Retailer 14€633 EUR
Retailer 15€638 EUR
Retailer 13€669 EUR
Retailer 7€709 EUR
Retailer 17€710 EUR
Retailer 10€722 EUR
Retailer 3€847 EUR
Retailer 4€856 EUR
Retailer 8€877 EUR
Retailer 1€926 EUR
Retailer 12€938 EUR
Retailer 2€1,015 EUR
Retailer 9€1,072 EUR
Retailer 16€1,085 EUR
Retailer 5€1,294 EUR
Retailer 6€1,413 EUR

27 data points across 17 retailers

19 retailers€502 EUR to €1,413 EUR

A
Cheapest Retailer
-
€502 EUR
HK$4,400 HKD
A
Retailer 2
-
€633 EUR
$710 USD
View
A
Retailer 3
-
€638 EUR
$716 USD
View
Final sale: no returns
A
Retailer 4
-
€669 EUR
View
Retailer 5
-
€709 EUR
SGD 1,075 SGD
View
Price last confirmed 10 days ago
A
Retailer 6
-
€710 EUR
$796 USD
View
A
Retailer 7
-
€722 EUR
£637 GBP
View
A
Retailer 8
-
€847 EUR
$950 USD
View
B+
Retailer 9
-
€856 EUR
$960 USD
View
B+
Retailer 10
-
€877 EUR
$983 USD
View
B+
Retailer 11
-
€926 EUR
View
B+
Retailer 12
-
€938 EUR
$1,052 USD
View
B+
Retailer 13
-
€972 EUR
A$1,678 AUD
View
Retailer 14
-
€1,015 EUR
$1,139 USD
View
Price last confirmed 9 days ago
Retailer 15
-
€1,072 EUR
A$1,851 AUD
View
Price last confirmed 28 days ago
B+
Retailer 16
-
€1,085 EUR
ZAR 19,655 ZAR
View
B+
Retailer 17
-
€1,294 EUR
£1,143 GBP
View
B
Retailer 18
-
€1,413 EUR
£1,248 GBP
View
Most Expensive
NZ Jewellers
9f9df035-b8c5-4539-99ae-50f8749fb01b · Sep 25
€2,258 EUR
$2,533 USD
View
Price last confirmed 38 days ago
18 more retailers have this diamond
Prices start from €502 EURSave up to €911 EUR

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
€502 EUR