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Marquise|Natural|GIA

1.21ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 7566562402

Certificate GIA 7566562402

Diamond specifications and retailer prices

From $5,875 NZD
As of November 6, 2026
Save $5,040 NZD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $10,915 NZD 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 I 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 7566562402. Listed at 8 retailers as of November 6, 2026, with prices from $5,875 to $10,915, a $5,040 spread on the same certified stone. Helzberg Diamonds lists it at $10,915. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.92°
Pavilion angle40.83°
OriginNatural
Grading LabGIA
CertificateGIA 7566562402
Dimensions10.30 × 5.56 × 3.62 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.30 mm5.56 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566562402
Side View
Table 61.0%Crown 40.92°Girdle: THN-VTKPavilion 40.83°Culet: NDepth 65.1%

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: $10,915 NZD|Low: $5,875 NZD|High: $10,915 NZD|Avg: $7,646 NZD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 8$5,875 NZD
Retailer 3$6,133 NZD
Retailer 2$6,628 NZD
Retailer 7$6,913 NZD
Retailer 6$7,432 NZD
Retailer 5$7,961 NZD
Retailer 4$10,217 NZD
Helzberg Diamonds$10,915 NZD

3 data points across 8 retailers

8 retailers$5,875 NZD to $10,915 NZD

B+
Cheapest Retailer
-
$5,875 NZD
B+
Retailer 2
-
$6,133 NZD
View
B+
Retailer 3
-
$6,628 NZD
View
B
Retailer 4
-
$6,913 NZD
View
B
Retailer 5
-
$7,432 NZD
View
B
Retailer 6
-
$7,961 NZD
View
B
Retailer 7
-
$10,217 NZD
View
Most Expensive
C
Helzberg Diamonds
XZRNLMMLMIKGI · Nov 6
$10,915 NZD
$6,051 USD
View
7 more retailers have this diamond
Prices start from $5,875 NZDSave up to $5,040 NZD

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
$5,875 NZD