Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 1569645931

Certificate GIA 1569645931

Diamond specifications and retailer prices

From $3,224 USD
As of November 4, 2026
Save $2,884 USD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,108 USD 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 $3,224 to $6,108, a $2,884 spread on the same certified stone. Helzberg Diamonds lists it at $6,108. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $6,108 USD|Low: $3,224 USD|High: $6,108 USD|Avg: $4,066 USD|+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 6, 2026
Retailer 3$3,224 USD
Retailer 11$3,278 USD
Retailer 10$3,315 USD
Retailer 4$3,393 USD
Retailer 2$3,433 USD
Retailer 5$3,515 USD
Retailer 9$3,687 USD
Retailer 13$3,870 USD
Retailer 12$4,156 USD
Retailer 8$4,272 USD
Retailer 7$4,456 USD
Retailer 6$5,736 USD
Helzberg Diamonds$6,108 USD

19 data points across 13 retailers

13 retailers$3,224 USD to $6,108 USD

B+
Cheapest Retailer
-
$3,224 USD
B+
Retailer 2
-
$3,278 USD
View
B+
Retailer 3
-
$3,315 USD
View
B+
Retailer 4
-
$3,393 USD
View
B+
Retailer 5
-
$3,433 USD
View
B+
Retailer 6
-
$3,515 USD
View
B+
Retailer 7
-
$3,687 USD
View
B
Retailer 8
-
$3,870 USD
View
B
Retailer 9
-
$4,156 USD
View
B
Retailer 10
-
$4,272 USD
View
B
Retailer 11
-
$4,456 USD
View
B
Retailer 12
-
$5,736 USD
View
Most Expensive
C
Helzberg Diamonds
XZRHLMPMKLPJH · Nov 6
$6,108 USD
View
12 more retailers have this diamond
Prices start from $3,224 USDSave up to $2,884 USD

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
$3,224 USD