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Oval|Natural|GIA

1.21ct K SI2 Oval Natural Diamond

EX • K/SI2 • GIA 6512041258

Certificate GIA 6512041258

Diamond specifications and retailer prices

From $2,607 NZD
As of November 1, 2026
Save $1,521 NZD (37%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,127 NZD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512041258. Listed at 9 retailers as of November 1, 2026, with prices from $2,607 to $4,127, a $1,521 spread on the same certified stone. Yorxs lists it at $4,127. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.36°
Pavilion angle38.36°
OriginNatural
Grading LabGIA
CertificateGIA 6512041258
Dimensions8.43 × 5.99 × 3.63 mm
L/W Ratio1.41
Top View
8.43 mm5.99 mm1.21 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512041258
Side View
Table 59.0%Crown 39.36°Girdle: STK-THKPavilion 38.36°Culet: NoneDepth 60.7%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $4,098 NZD|Low: $2,607 NZD|High: $4,317 NZD|Avg: $3,148 NZD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
November 6, 2026
Retailer 3$2,607 NZD
Retailer 7$2,643 NZD
Retailer 6$2,686 NZD
Retailer 5$2,711 NZD
Retailer 8$2,756 NZD
Retailer 4$3,261 NZD
Retailer 2$3,382 NZD
Retailer 1$4,098 NZD
Yorxs$4,127 NZD

39 data points across 9 retailers

9 retailers$2,607 NZD to $4,127 NZD

A
Cheapest Retailer
-
$2,607 NZD
A
Retailer 2
-
$2,643 NZD
View
A
Retailer 3
-
$2,686 NZD
View
A
Retailer 4
-
$2,711 NZD
View
A
Retailer 5
-
$2,756 NZD
View
B+
Retailer 6
-
$3,261 NZD
View
B+
Retailer 7
-
$3,382 NZD
View
B+
Retailer 8
-
$4,098 NZD
View
Most Expensive
B+
Yorxs
488440496 · Nov 6
$4,127 NZD
€2,179 EUR
View
8 more retailers have this diamond
Prices start from $2,607 NZDSave up to $1,521 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
$2,607 NZD