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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 $1,655 SGD
As of November 6, 2026
Save $3,768 SGD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,422 SGD 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 $1,655 to $5,422, a $3,768 spread on the same certified stone. NZ Jewellers lists it at $5,422. 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
Colour
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: $2,039 SGD|Low: $1,655 SGD|High: $3,941 SGD|Avg: $2,592 SGD|-8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$1,655 SGD
Retailer 1$2,039 SGD
Retailer 4$2,467 SGD
Retailer 5$2,713 SGD
Retailer 3$2,817 SGD
Retailer 6$3,895 SGD

35 data points across 6 retailers

15 retailers$1,655 SGD to $5,422 SGD

A
Cheapest Retailer
-
$1,655 SGD
B+
Retailer 2
-
$2,026 SGD
View
A
Retailer 3
-
$2,039 SGD
View
B+
Retailer 4
-
$2,224 SGD
View
Retailer 5
-
$2,224 SGD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$2,307 SGD
View
B+
Retailer 7
-
$2,326 SGD
View
B+
Retailer 8
-
$2,398 SGD
View
Retailer 9
-
$2,409 SGD
View
Price last confirmed 39 days ago
B+
Retailer 10
-
$2,467 SGD
View
B+
Retailer 11
-
$2,564 SGD
View
B+
Retailer 12
-
$2,713 SGD
View
B+
Retailer 13
-
$2,817 SGD
View
B
Retailer 14
-
$3,895 SGD
View
Most Expensive
C
NZ Jewellers
73aed409-1bee-4c0d-bbc6-5dcd82ceaa92 · Nov 5
$5,422 SGD
$4,231 USD
View
14 more retailers have this diamond
Prices start from $1,655 SGDSave up to $3,768 SGD

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
$1,655 SGD