Marquise|Natural|GIA

1.21ct J SI2 Marquise Natural Diamond

ID • J/SI2 • GIA 05

Certificate GIA 05

Diamond specifications and retailer prices

From $3,079 USD
As of November 4, 2026
Save $3,901 USD (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,980 USD 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. Listed at 8 retailers as of November 4, 2026, with prices from $3,079 to $6,980, a $3,901 spread on the same certified stone. NZ Jewellers lists it at $6,980. 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
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 05
Dimensions10.32 × 5.53 × 3.51 mm
L/W Ratio1.87
Top View
10.32 mm5.53 mm1.21 ctJ / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 05
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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: $6,980 USD|Low: $3,079 USD|High: $7,219 USD|Avg: $4,154 USD|-3.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 3$3,079 USD
Retailer 8$3,191 USD
Retailer 4$3,629 USD
Retailer 7$3,754 USD
Retailer 6$3,769 USD
Retailer 5$3,836 USD
Retailer 2$4,148 USD
NZ Jewellers$6,980 USD

10 data points across 8 retailers

8 retailers$3,079 USD to $6,980 USD

B+
Cheapest Retailer
-
$3,079 USD
B
Retailer 2
-
$3,191 USD
View
B
Retailer 3
-
$3,629 USD
View
Retailer 4
-
$3,754 USD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$3,769 USD
View
B
Retailer 6
-
$3,836 USD
View
B
Retailer 7
-
$4,148 USD
View
Most Expensive
B
NZ Jewellers
04eec4f6-1c62-4a18-9070-3db39de9fa65 · Nov 5
$6,980 USD
View
7 more retailers have this diamond
Prices start from $3,079 USDSave up to $3,901 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
$3,079 USD