Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6512485714

Certificate GIA 6512485714

Diamond specifications and retailer prices

From $6,521 NZD
As of November 5, 2026
Save $7,730 NZD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $14,251 NZD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512485714. Listed at 14 retailers as of November 5, 2026, with prices from $6,521 to $14,251, a $7,730 spread on the same certified stone. NZ Jewellers lists it at $14,251. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512485714
Dimensions8.49 × 5.71 × 3.62 mm
L/W Ratio1.49
Top View
8.49 mm5.71 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512485714
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.5%

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: $8,307 NZD|Low: $6,521 NZD|High: $13,187 NZD|Avg: $8,757 NZD|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 7$6,521 NZD
Retailer 6$6,961 NZD
Retailer 9$7,053 NZD
Retailer 2$7,935 NZD
Retailer 8$8,246 NZD
Retailer 1$8,307 NZD
Retailer 5$9,254 NZD
Retailer 3$9,979 NZD
Retailer 4$12,993 NZD

40 data points across 9 retailers

14 retailers$6,521 NZD to $14,251 NZD

B
Cheapest Retailer
-
$6,521 NZD
B+
Retailer 2
-
$6,961 NZD
View
B+
Retailer 3
-
$7,053 NZD
View
B
Retailer 4
-
$7,410 NZD
View
Retailer 5
-
$7,410 NZD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$7,410 NZD
View
B
Retailer 7
-
$7,935 NZD
View
Retailer 8
-
$8,246 NZD
View
Price last confirmed 29 days ago
B
Retailer 9
-
$8,307 NZD
View
B
Retailer 10
-
$8,550 NZD
View
B
Retailer 11
-
$9,254 NZD
View
B
Retailer 12
-
$9,979 NZD
View
B
Retailer 13
-
$12,993 NZD
View
Most Expensive
B
NZ Jewellers
edce7938-a8a4-4108-9120-d4a5b64d9071 · Nov 5
$14,251 NZD
$7,900 USD
View
13 more retailers have this diamond
Prices start from $6,521 NZDSave up to $7,730 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 Oval
$6,521 NZD