Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2537021463

Certificate GIA 2537021463

Diamond specifications and retailer prices

From $5,659 NZD
As of November 4, 2026
Save $7,854 NZD (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $13,513 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 2537021463. Listed at 20 retailers as of November 4, 2026, with prices from $5,659 to $13,513, a $7,854 spread on the same certified stone. NZ Jewellers lists it at $13,513. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537021463
Dimensions8.61 × 5.74 × 3.67 mm
L/W Ratio1.50
Top View
8.61 mm5.74 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537021463
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.9%

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 4
Current: $7,856 NZD|Low: $5,659 NZD|High: $12,501 NZD|Avg: $8,169 NZD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 7$5,659 NZD
Retailer 3$6,182 NZD
Retailer 11$6,485 NZD
Retailer 2$6,711 NZD
Retailer 4$7,297 NZD
Retailer 9$7,645 NZD
Retailer 1$7,856 NZD
Retailer 12$8,271 NZD
Retailer 8$8,776 NZD
Retailer 5$9,467 NZD
Retailer 10$11,211 NZD
Retailer 6$12,321 NZD

46 data points across 12 retailers

20 retailers$5,659 NZD to $13,513 NZD

B+
Cheapest Retailer
-
$5,659 NZD
B+
Retailer 2
-
$6,182 NZD
View
B
Retailer 3
-
$6,485 NZD
View
Final sale: no returns
B+
Retailer 4
-
$6,711 NZD
View
Retailer 5
-
$7,026 NZD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$7,026 NZD
View
B
Retailer 7
-
$7,297 NZD
View
B
Retailer 8
-
$7,645 NZD
View
B
Retailer 9
-
$7,856 NZD
View
B
Retailer 10
-
$7,937 NZD
View
B
Retailer 11
-
$7,937 NZD
View
B
Retailer 12
-
$8,107 NZD
View
B
Retailer 13
-
$8,190 NZD
View
B
Retailer 14
-
$8,192 NZD
View
Retailer 15
-
$8,271 NZD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$8,776 NZD
View
B
Retailer 17
-
$9,467 NZD
View
B
Retailer 18
-
$11,211 NZD
View
B
Retailer 19
-
$12,321 NZD
View
Most Expensive
B
NZ Jewellers
81d4bb3b-4d45-438a-afe8-31a16914d4ec · Nov 5
$13,513 NZD
$7,491 USD
View
19 more retailers have this diamond
Prices start from $5,659 NZDSave up to $7,854 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
$5,659 NZD