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Marquise|Natural|GIA

1.21ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6555372918

Certificate GIA 6555372918

Diamond specifications and retailer prices

From $4,726 NZD
As of November 5, 2026
Save $5,423 NZD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,149 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555372918. Listed at 13 retailers as of November 5, 2026, with prices from $4,726 to $10,149, a $5,423 spread on the same certified stone. NZ Jewellers lists it at $10,149. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle41.16°
Pavilion angle40.57°
OriginNatural
Grading LabGIA
CertificateGIA 6555372918
Dimensions10.55 × 5.49 × 3.51 mm
L/W Ratio1.92
Culet sizeNone
Top View
10.55 mm5.49 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6555372918
Side View
Table 57.0%Crown 41.16°Girdle: STK-VTKPavilion 40.57°Culet: NoneDepth 63.9%

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 5
Current: $10,149 NZD|Low: $3,783 NZD|High: $10,149 NZD|Avg: $4,960 NZD
NZ Jewellers
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 5$3,783 NZD
Retailer 6$4,109 NZD
Retailer 3$4,383 NZD
Retailer 10$4,726 NZD
Retailer 16$5,011 NZD
Retailer 12$5,091 NZD
Retailer 7$5,260 NZD
Retailer 13$5,276 NZD
Retailer 8$5,386 NZD
Retailer 11$5,800 NZD
Retailer 2$5,946 NZD
Retailer 14$5,962 NZD
Retailer 9$6,027 NZD
Retailer 4$6,554 NZD
Retailer 15$7,519 NZD
NZ Jewellers$10,149 NZD

31 data points across 16 retailers

13 retailers$4,726 NZD to $10,149 NZD

Retailer 1
-
$4,109 NZD
Price last confirmed 21 days ago
Retailer 2
-
$4,383 NZD
View
Price last confirmed 18 days ago
B+
Retailer 3
-
$4,726 NZD
View
B+
Retailer 4
-
$5,091 NZD
View
B+
Retailer 5
-
$5,239 NZD
View
B+
Retailer 6
-
$5,276 NZD
View
B
Retailer 7
-
$5,800 NZD
View
B
Retailer 8
-
$5,946 NZD
View
B
Retailer 9
-
$5,962 NZD
View
B
Retailer 10
-
$6,027 NZD
View
Retailer 11
-
$6,554 NZD
View
Price last confirmed 19 days ago
B
Retailer 12
-
$7,519 NZD
View
Most Expensive
C
NZ Jewellers
bb823756-70fd-443a-9a0a-294775cc99d0 · Nov 5
$10,149 NZD
$5,626 USD
View
12 more retailers have this diamond
Prices start from $4,726 NZDSave up to $5,423 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
$4,726 NZD