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Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 1559993905

Certificate GIA 1559993905

Diamond specifications and retailer prices

From $1,291 USD
As of November 6, 2026
Save $2,940 USD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,231 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559993905. Listed at 15 retailers as of November 5, 2026, with prices from $1,291 to $4,231, a $2,940 spread on the same certified stone. NZ Jewellers lists it at $4,231. 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

1.00
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559993905
Dimensions9.64 × 5.09 × 3.33 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
9.64 mm5.09 mm1.00 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559993905
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.5%

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 6
Current: $1,591 USD|Low: $1,291 USD|High: $3,075 USD|Avg: $2,022 USD|-8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$1,291 USD
Retailer 1$1,591 USD
Retailer 4$1,925 USD
Retailer 5$2,117 USD
Retailer 3$2,198 USD
Retailer 6$3,039 USD

35 data points across 6 retailers

15 retailers$1,291 USD to $4,231 USD

A
Cheapest Retailer
-
$1,291 USD
B+
Retailer 2
-
$1,581 USD
View
A
Retailer 3
-
$1,591 USD
View
B+
Retailer 4
-
$1,735 USD
View
Retailer 5
-
$1,735 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,800 USD
View
B+
Retailer 7
-
$1,815 USD
View
B+
Retailer 8
-
$1,871 USD
View
Retailer 9
-
$1,880 USD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$1,925 USD
View
B+
Retailer 11
-
$2,001 USD
View
B+
Retailer 12
-
$2,117 USD
View
B+
Retailer 13
-
$2,198 USD
View
B
Retailer 14
-
$3,039 USD
View
Most Expensive
C
NZ Jewellers
73aed409-1bee-4c0d-bbc6-5dcd82ceaa92 · Nov 5
$4,231 USD
View
14 more retailers have this diamond
Prices start from $1,291 USDSave up to $2,940 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
$1,291 USD