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Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 2556808009

Certificate GIA 2556808009

Diamond specifications and retailer prices

From $1,706 SGD
As of November 6, 2026
Save $1,520 SGD (47%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,226 SGD at With Clarity · As of November 6, 2026
View at With Clarity

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2556808009. Listed at 7 retailers as of November 6, 2026, with prices from $1,706 to $3,226, a $1,520 spread on the same certified stone. With Clarity lists it at $3,226. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556808009
Dimensions9.82 × 5.15 × 3.32 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
9.82 mm5.15 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556808009
Side View
Table 59.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 64.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,316 SGD|Low: $1,706 SGD|High: $3,192 SGD|Avg: $2,291 SGD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
With Clarity
November 6, 2026
Retailer 4$1,706 SGD
Retailer 3$1,888 SGD
Retailer 6$2,094 SGD
Retailer 1$2,316 SGD
Retailer 5$2,333 SGD
Retailer 2$2,363 SGD
With Clarity$3,192 SGD

14 data points across 7 retailers

7 retailers$1,706 SGD to $3,226 SGD

B+
Cheapest Retailer
-
$1,706 SGD
B+
Retailer 2
-
$1,888 SGD
View
B+
Retailer 3
-
$2,094 SGD
View
B+
Retailer 4
-
$2,316 SGD
View
B+
Retailer 5
-
$2,333 SGD
View
B+
Retailer 6
-
$2,363 SGD
View
Most Expensive
B
With Clarity
2556808009 · Nov 6
$3,226 SGD
$2,517 USD
View
6 more retailers have this diamond
Prices start from $1,706 SGDSave up to $1,520 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.

B+
1.00ct Marquise
$1,706 SGD