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Marquise|Natural|GIA

1.00ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 2566212549

Certificate GIA 2566212549

Diamond specifications and retailer prices

From $1,576 SGD
As of November 6, 2026
Save $3,590 SGD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,167 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566212549. Listed at 15 retailers as of November 5, 2026, with prices from $1,576 to $5,167, a $3,590 spread on the same certified stone. NZ Jewellers lists it at $5,167. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566212549
Dimensions11.25 × 5.13 × 2.99 mm
L/W Ratio2.19
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity, Needle
Top View
11.25 mm5.13 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2566212549
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NDepth 58.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,167 SGD|Low: $1,576 SGD|High: $5,236 SGD|Avg: $2,551 SGD|-1.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 2$1,576 SGD
Retailer 4$1,963 SGD
Retailer 3$2,119 SGD
Retailer 14$2,119 SGD
Retailer 8$2,166 SGD
Retailer 5$2,175 SGD
Retailer 15$2,216 SGD
Retailer 11$2,242 SGD
Retailer 6$2,293 SGD
Retailer 10$2,350 SGD
Retailer 13$2,385 SGD
Retailer 7$2,445 SGD
Retailer 9$2,878 SGD
Retailer 12$3,711 SGD
NZ Jewellers$5,167 SGD

24 data points across 15 retailers

15 retailers$1,576 SGD to $5,167 SGD

A
Cheapest Retailer
-
$1,576 SGD
A
Retailer 2
-
$1,963 SGD
View
Retailer 3
-
$2,119 SGD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$2,119 SGD
View
A
Retailer 5
-
$2,166 SGD
View
A
Retailer 6
-
$2,175 SGD
View
B+
Retailer 7
-
$2,216 SGD
View
A
Retailer 8
-
$2,242 SGD
View
A
Retailer 9
-
$2,293 SGD
View
B+
Retailer 10
-
$2,350 SGD
View
B+
Retailer 11
-
$2,385 SGD
View
B+
Retailer 12
-
$2,445 SGD
View
B+
Retailer 13
-
$2,878 SGD
View
B
Retailer 14
-
$3,711 SGD
View
Most Expensive
B
NZ Jewellers
8d72a1a1-e430-49cc-912d-d0342c4139db · Nov 5
$5,167 SGD
$4,045 USD
View
14 more retailers have this diamond
Prices start from $1,576 SGDSave up to $3,590 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
$1,576 SGD