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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2514997177

Certificate GIA 2514997177

Diamond specifications and retailer prices

From $5,071 NZD
As of November 6, 2026
Save $5,354 NZD (51%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $10,890 NZD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2514997177. Listed at 22 retailers as of November 4, 2026, with a 106% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2514997177
Dimensions6.77 × 6.74 × 4.22 mm
L/W Ratio1.00
Top View
6.77 mm6.74 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2514997177
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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: $5,872 NZD|Low: $5,071 NZD|High: $10,578 NZD|Avg: $6,626 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 2$5,071 NZD
Retailer 16$5,105 NZD
Retailer 3$5,188 NZD
Retailer 14$5,318 NZD
Retailer 10$5,699 NZD
Retailer 1$5,872 NZD
Retailer 5$5,928 NZD
Retailer 11$5,937 NZD
Retailer 4$6,196 NZD
Retailer 7$6,251 NZD
Retailer 8$6,251 NZD
Retailer 12$6,427 NZD
Retailer 6$6,588 NZD
Retailer 18$6,927 NZD
Retailer 9$7,437 NZD
Retailer 13$7,905 NZD
Retailer 17$9,113 NZD
Retailer 15$10,425 NZD

36 data points across 18 retailers

22 retailers$5,071 NZD to $10,425 NZD

A
Cheapest Retailer
-
$5,071 NZD
A
Retailer 2
-
$5,105 NZD
View
A
Retailer 3
-
$5,188 NZD
View
A
Retailer 4
-
$5,318 NZD
View
B+
Retailer 5
-
$5,699 NZD
View
B+
Retailer 6
-
$5,872 NZD
View
B+
Retailer 7
-
$5,928 NZD
View
B+
Retailer 8
-
$5,937 NZD
View
B+
Retailer 9
-
$6,196 NZD
View
Retailer 10
-
$6,251 NZD
View
Price last confirmed 22 days ago
Retailer 11
-
$6,251 NZD
View
Price last confirmed 20 days ago
B+
Retailer 12
-
$6,427 NZD
View
Retailer 13
-
$6,490 NZD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
$6,588 NZD
View
B
Retailer 15
-
$6,927 NZD
View
Retailer 16
-
$7,212 NZD
View
Price last confirmed 61 days ago
Retailer 17
-
$7,212 NZD
View
Price last confirmed 20 days ago
B
Retailer 18
-
$7,905 NZD
View
B
Retailer 19
-
$9,113 NZD
View
B
Retailer 20
-
$10,425 NZD
View
Retailer 21
-
$10,890 NZD
View
Price last confirmed 58 days ago
Most Expensive
NZ Jewellers
47c026bc-2b12-4414-b735-69a546780bda · Oct 17
$10,890 NZD
$6,037 USD
View
Price last confirmed 21 days ago
21 more retailers have this diamond
Prices start from $5,071 NZDSave up to $5,354 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 Round
$5,071 NZD