Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 1375003103

Certificate GIA 1375003103

Diamond specifications and retailer prices

From €1,962 EUR
As of November 6, 2026
Save €3,218 EUR (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €5,180 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1375003103. Listed at 19 retailers as of November 5, 2026, with prices from €1,962 to €5,180, a €3,218 spread on the same certified stone. NZ Jewellers lists it at €5,180. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1375003103
Dimensions10.03 × 5.08 × 3.32 mm
L/W Ratio1.97
Culet sizeNone
Top View
10.03 mm5.08 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1375003103
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.3%

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: €2,607 EUR|Low: €1,962 EUR|High: €4,394 EUR|Avg: €2,752 EUR|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7€1,962 EUR
Retailer 5€2,226 EUR
Retailer 6€2,348 EUR
Retailer 8€2,590 EUR
Retailer 1€2,607 EUR
Retailer 4€2,889 EUR
Retailer 2€3,025 EUR
Retailer 3€4,330 EUR

43 data points across 8 retailers

19 retailers€1,962 EUR to €5,180 EUR

B+
Cheapest Retailer
-
€1,962 EUR
B+
Retailer 2
-
€2,018 EUR
View
B+
Retailer 3
-
€2,028 EUR
View
B+
Retailer 4
-
€2,117 EUR
View
B+
Retailer 5
-
€2,166 EUR
View
B
Retailer 6
-
€2,226 EUR
View
Retailer 7
-
€2,245 EUR
View
Price last confirmed 9 days ago
B
Retailer 8
-
€2,245 EUR
View
B
Retailer 9
-
€2,283 EUR
View
B
Retailer 10
-
€2,348 EUR
View
B
Retailer 11
-
€2,434 EUR
View
B
Retailer 12
-
€2,434 EUR
View
B
Retailer 13
-
€2,590 EUR
View
B+
Retailer 14
-
€2,607 EUR
View
B
Retailer 15
-
€2,889 EUR
View
B
Retailer 16
-
€3,025 EUR
View
B
Retailer 17
-
€3,569 EUR
View
B
Retailer 18
-
€4,330 EUR
View
Most Expensive
C
NZ Jewellers
d25ecab8-ce6f-41c4-a648-317ad859a575 · Nov 5
€5,180 EUR
$5,784 USD
View
18 more retailers have this diamond
Prices start from €1,962 EURSave up to €3,218 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.

B+
1.00ct Marquise
€1,962 EUR