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Oval|Natural|GIA

1.21ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 2557610799

Certificate GIA 2557610799

Diamond specifications and retailer prices

From $4,070 NZD
As of November 5, 2026
Save $3,408 NZD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,477 NZD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded G 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 2557610799. Listed at 14 retailers as of November 5, 2026, with prices from $4,070 to $7,477, a $3,408 spread on the same certified stone. Helzberg Diamonds lists it at $7,477. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.61°
Pavilion angle39.97°
OriginNatural
Grading LabGIA
CertificateGIA 2557610799
Dimensions8.34 × 5.99 × 3.72 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.34 mm5.99 mm1.21 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557610799
Side View
Table 60.0%Crown 38.61°Girdle: STK-THKPavilion 39.97°Culet: NoneDepth 62.0%

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 5
Current: $7,477 NZD|Low: $4,046 NZD|High: $8,033 NZD|Avg: $5,322 NZD|-6.9%
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 9$4,070 NZD
Retailer 12$4,100 NZD
Retailer 2$4,277 NZD
Retailer 11$4,351 NZD
Retailer 8$4,656 NZD
Retailer 5$4,739 NZD
Retailer 3$5,121 NZD
Retailer 10$5,231 NZD
Retailer 4$5,350 NZD
Retailer 6$5,459 NZD
Retailer 7$5,590 NZD
Retailer 13$7,136 NZD
Helzberg Diamonds$7,477 NZD

25 data points across 13 retailers

14 retailers$4,070 NZD to $7,477 NZD

A
Cheapest Retailer
-
$4,070 NZD
A
Retailer 2
-
$4,100 NZD
View
A
Retailer 3
-
$4,277 NZD
View
A
Retailer 4
-
$4,351 NZD
View
A
Retailer 5
-
$4,656 NZD
View
A
Retailer 6
-
$4,739 NZD
View
A
Retailer 7
-
$5,121 NZD
View
A
Retailer 8
-
$5,231 NZD
View
A
Retailer 9
-
$5,350 NZD
View
A
Retailer 10
-
$5,459 NZD
View
B+
Retailer 11
-
$5,590 NZD
View
B+
Retailer 12
-
$5,690 NZD
View
B+
Retailer 13
-
$7,136 NZD
View
Most Expensive
B+
Helzberg Diamonds
XZRILLNMHGNPP · Nov 6
$7,477 NZD
$4,145 USD
View
13 more retailers have this diamond
Prices start from $4,070 NZDSave up to $3,408 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
$4,070 NZD