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Oval|Natural|GIA

1.21ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6512841995

Certificate GIA 6512841995

Diamond specifications and retailer prices

From $2,480 NZD
As of November 6, 2026
Save $3,375 NZD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,173 NZD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct natural oval 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 6512841995. Listed at 14 retailers as of November 4, 2026, with a 136% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6512841995
Dimensions8.37 × 5.94 × 3.73 mm
L/W Ratio1.41
Top View
8.37 mm5.94 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6512841995
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,615 NZD|Low: $2,480 NZD|High: $5,942 NZD|Avg: $3,672 NZD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 4$2,480 NZD
Retailer 7$2,625 NZD
Retailer 2$3,034 NZD
Retailer 1$3,615 NZD
Retailer 3$3,628 NZD
Retailer 6$3,806 NZD
Retailer 5$4,234 NZD
Retailer 8$5,855 NZD

39 data points across 8 retailers

14 retailers$2,480 NZD to $5,855 NZD

A
Cheapest Retailer
-
$2,480 NZD
A
Retailer 2
-
$2,625 NZD
View
Final sale: no returns
B+
Retailer 3
-
$3,034 NZD
View
Retailer 4
-
$3,352 NZD
View
Price last confirmed 22 days ago
Retailer 5
-
$3,352 NZD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$3,399 NZD
View
Retailer 7
-
$3,505 NZD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$3,615 NZD
View
B+
Retailer 9
-
$3,628 NZD
View
B+
Retailer 10
-
$3,806 NZD
View
Retailer 11
-
$3,868 NZD
View
Price last confirmed 20 days ago
B+
Retailer 12
-
$4,234 NZD
View
B
Retailer 13
-
$5,855 NZD
View
Most Expensive
NZ Jewellers
aa8b3852-90b1-4e42-915a-ff90d46e4cc0 · Oct 17
$8,173 NZD
$4,531 USD
View
Price last confirmed 20 days ago
13 more retailers have this diamond
Prices start from $2,480 NZDSave up to $3,375 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.

A
1.21ct Oval
$2,480 NZD