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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 $2,589 SGD
As of November 5, 2026
Save $3,028 SGD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,617 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 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 $2,589 to $5,617, a $3,028 spread on the same certified stone. NZ Jewellers lists it at $5,617. 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
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: $5,617 SGD|Low: $2,589 SGD|High: $5,617 SGD|Avg: $3,356 SGD
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$2,589 SGD
Retailer 2$2,605 SGD
Retailer 8$2,686 SGD
Retailer 10$2,686 SGD
Retailer 11$2,811 SGD
Retailer 5$2,902 SGD
Retailer 9$3,100 SGD
Retailer 6$3,278 SGD
Retailer 4$3,649 SGD
Retailer 7$4,693 SGD
NZ Jewellers$5,617 SGD

31 data points across 11 retailers

11 retailers$2,589 SGD to $5,617 SGD

B+
Cheapest Retailer
-
$2,589 SGD
A
Retailer 2
-
$2,605 SGD
View
B+
Retailer 3
-
$2,686 SGD
View
Retailer 4
-
$2,686 SGD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$2,811 SGD
View
B+
Retailer 6
-
$2,902 SGD
View
B+
Retailer 7
-
$3,100 SGD
View
B
Retailer 8
-
$3,278 SGD
View
B
Retailer 9
-
$3,649 SGD
View
B
Retailer 10
-
$4,693 SGD
View
Most Expensive
B
NZ Jewellers
217a42f4-c008-4506-814d-c2a88dac9aea · Nov 5
$5,617 SGD
$4,383 USD
View
10 more retailers have this diamond
Prices start from $2,589 SGDSave up to $3,028 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
$2,589 SGD