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Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1567588621

Certificate GIA 1567588621

Diamond specifications and retailer prices

From $6,734 SGD
As of November 4, 2026
Save $5,507 SGD (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,241 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567588621. Listed at 15 retailers as of November 4, 2026, with prices from $6,734 to $12,241, a $5,507 spread on the same certified stone. Wholesale Diamonds Direct lists it at $12,241. 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

1.21
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.76°
Pavilion angle40.69°
OriginNatural
Grading LabGIA
CertificateGIA 1567588621
Dimensions10.43 × 5.51 × 3.55 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.43 mm5.51 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567588621
Side View
Table 60.0%Crown 39.76°Girdle: MED-THKPavilion 40.69°Culet: NoneDepth 64.4%

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 4
Current: $7,609 SGD|Low: $6,734 SGD|High: $12,241 SGD|Avg: $8,515 SGD|-1.5%
Retailer 1
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
Wholesale Diamonds Direct
November 7, 2026
Retailer 5$6,734 SGD
Retailer 10$6,853 SGD
Retailer 12$6,918 SGD
Retailer 9$7,046 SGD
Retailer 14$7,123 SGD
Retailer 13$7,222 SGD
Retailer 6$7,286 SGD
Retailer 1$7,609 SGD
Retailer 4$8,514 SGD
Retailer 8$8,538 SGD
Retailer 2$8,551 SGD
Retailer 7$9,544 SGD
Retailer 3$11,053 SGD
Retailer 11$11,602 SGD
Wholesale Diamonds Direct$12,241 SGD

24 data points across 15 retailers

15 retailers$6,734 SGD to $12,241 SGD

B+
Cheapest Retailer
-
$6,734 SGD
B+
Retailer 2
-
$6,853 SGD
View
B+
Retailer 3
-
$6,918 SGD
View
B+
Retailer 4
-
$7,046 SGD
View
B+
Retailer 5
-
$7,123 SGD
View
B+
Retailer 6
-
$7,222 SGD
View
B+
Retailer 7
-
$7,286 SGD
View
B+
Retailer 8
-
$7,609 SGD
View
B
Retailer 9
-
$8,514 SGD
View
B
Retailer 10
-
$8,538 SGD
View
B
Retailer 11
-
$8,551 SGD
View
B
Retailer 12
-
$9,544 SGD
View
B
Retailer 13
-
$11,053 SGD
View
B
Retailer 14
-
$11,602 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
545946513 · Nov 6
$12,241 SGD
$9,551 USD
View
14 more retailers have this diamond
Prices start from $6,734 SGDSave up to $5,507 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
$6,734 SGD