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Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 1569645931

Certificate GIA 1569645931

Diamond specifications and retailer prices

From $4,132 SGD
As of November 4, 2026
Save $3,696 SGD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,828 SGD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1569645931. Listed at 13 retailers as of November 4, 2026, with prices from $4,132 to $7,828, a $3,696 spread on the same certified stone. Helzberg Diamonds lists it at $7,828. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.4°
Pavilion angle42.04°
OriginNatural
Grading LabGIA
CertificateGIA 1569645931
Dimensions10.26 × 5.54 × 3.57 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.26 mm5.54 mm1.21 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1569645931
Side View
Table 61.0%Crown 36.4°Girdle: STK-VTKPavilion 42.04°Culet: NDepth 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 4
Current: $7,828 SGD|Low: $4,132 SGD|High: $7,828 SGD|Avg: $5,209 SGD|+5.3%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 3$4,132 SGD
Retailer 11$4,201 SGD
Retailer 10$4,249 SGD
Retailer 4$4,348 SGD
Retailer 6$4,400 SGD
Retailer 5$4,505 SGD
Retailer 2$4,753 SGD
Retailer 13$4,960 SGD
Retailer 12$5,326 SGD
Retailer 9$5,475 SGD
Retailer 8$5,711 SGD
Retailer 7$7,351 SGD
Helzberg Diamonds$7,828 SGD

20 data points across 13 retailers

13 retailers$4,132 SGD to $7,828 SGD

B+
Cheapest Retailer
-
$4,132 SGD
B+
Retailer 2
-
$4,201 SGD
View
B+
Retailer 3
-
$4,249 SGD
View
B+
Retailer 4
-
$4,348 SGD
View
B+
Retailer 5
-
$4,400 SGD
View
B+
Retailer 6
-
$4,505 SGD
View
B+
Retailer 7
-
$4,753 SGD
View
B
Retailer 8
-
$4,960 SGD
View
B
Retailer 9
-
$5,326 SGD
View
B
Retailer 10
-
$5,475 SGD
View
B
Retailer 11
-
$5,711 SGD
View
B
Retailer 12
-
$7,351 SGD
View
Most Expensive
C
Helzberg Diamonds
XZRHLMPMKLPJH · Nov 6
$7,828 SGD
$6,108 USD
View
12 more retailers have this diamond
Prices start from $4,132 SGDSave up to $3,696 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
$4,132 SGD