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Marquise|Natural|GIA

1.21ct K SI2 Marquise Natural Diamond

GD • K/SI2 • GIA 6551370755

Certificate GIA 6551370755

Diamond specifications and retailer prices

From $2,586 SGD
As of November 6, 2026
Save $1,654 SGD (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,241 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551370755. Listed at 8 retailers as of November 6, 2026, with prices from $2,586 to $4,241, a $1,654 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,241. 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

1.21
Carat
K
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.53°
Pavilion angle39.85°
OriginNatural
Grading LabGIA
CertificateGIA 6551370755
Dimensions11.36 × 5.05 × 3.42 mm
L/W Ratio2.25
Culet sizeNone
Top View
11.36 mm5.05 mm1.21 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551370755
Side View
Table 57.0%Crown 41.53°Girdle: STK-VTKPavilion 39.85°Culet: NoneDepth 67.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $2,586 SGD|Low: $2,054 SGD|High: $4,518 SGD|Avg: $3,146 SGD|-6.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$2,054 SGD
Retailer 1$2,586 SGD
Retailer 8$2,588 SGD
Retailer 7$2,768 SGD
Retailer 4$2,834 SGD
Retailer 6$2,840 SGD
Retailer 10$3,294 SGD
Retailer 5$3,298 SGD
Retailer 3$3,660 SGD
Retailer 9$4,020 SGD
Wholesale Diamonds Direct$4,241 SGD

19 data points across 11 retailers

8 retailers$2,586 SGD to $4,241 SGD

B+
Cheapest Retailer
-
$2,586 SGD
B+
Retailer 2
-
$2,768 SGD
View
B+
Retailer 3
-
$2,834 SGD
View
B+
Retailer 4
-
$2,840 SGD
View
B+
Retailer 5
-
$3,294 SGD
View
B+
Retailer 6
-
$3,298 SGD
View
B
Retailer 7
-
$3,660 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
642297446 · Nov 6
$4,241 SGD
$3,309 USD
View
7 more retailers have this diamond
Prices start from $2,586 SGDSave up to $1,654 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+
1.21ct Marquise
$2,586 SGD