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Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 1565284218

Certificate GIA 1565284218

Diamond specifications and retailer prices

From $2,020 USD
As of November 5, 2026
Save $2,363 USD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,383 USD 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 1565284218. Listed at 11 retailers as of November 5, 2026, with prices from $2,020 to $4,383, a $2,363 spread on the same certified stone. NZ Jewellers lists it at $4,383. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565284218
Dimensions9.75 × 5.27 × 3.29 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
9.75 mm5.27 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565284218
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.5%

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: $4,383 USD|Low: $2,020 USD|High: $4,383 USD|Avg: $2,619 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$2,020 USD
Retailer 2$2,033 USD
Retailer 8$2,096 USD
Retailer 10$2,096 USD
Retailer 11$2,193 USD
Retailer 5$2,264 USD
Retailer 9$2,419 USD
Retailer 6$2,558 USD
Retailer 4$2,847 USD
Retailer 7$3,662 USD
NZ Jewellers$4,383 USD

31 data points across 11 retailers

11 retailers$2,020 USD to $4,383 USD

B+
Cheapest Retailer
-
$2,020 USD
A
Retailer 2
-
$2,033 USD
View
B+
Retailer 3
-
$2,096 USD
View
Retailer 4
-
$2,096 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,193 USD
View
B+
Retailer 6
-
$2,264 USD
View
B+
Retailer 7
-
$2,419 USD
View
B
Retailer 8
-
$2,558 USD
View
B
Retailer 9
-
$2,847 USD
View
B
Retailer 10
-
$3,662 USD
View
Most Expensive
B
NZ Jewellers
217a42f4-c008-4506-814d-c2a88dac9aea · Nov 5
$4,383 USD
View
10 more retailers have this diamond
Prices start from $2,020 USDSave up to $2,363 USD

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
1.00ct Marquise
$2,020 USD