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Oval|Natural|GIA

1.21ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 1555180089

Certificate GIA 1555180089

Diamond specifications and retailer prices

From $3,088 AUD
$2,169 USD
As of October 31, 2026
Save $5,771 AUD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,859 AUD at NZ Jewellers · As of October 30, 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 H 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 1555180089. Listed at 20 retailers as of October 30, 2026, with prices from $3,088 to $8,859, a $5,771 spread on the same certified stone. NZ Jewellers lists it at $8,859. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle37.2°
OriginNatural
Grading LabGIA
CertificateGIA 1555180089
Dimensions8.26 × 6.00 × 3.80 mm
L/W Ratio1.38
Girdle conditionFaceted
Top View
8.26 mm6.00 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555180089
Side View
Table 59.0%Crown 37.8°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 63.4%

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: Oct 31
Current: $8,859 AUD|Low: $3,088 AUD|High: $8,859 AUD|Avg: $4,489 AUD|+16.5%
NZ Jewellers
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
Retailer 19
Retailer 20
November 1, 2026
Retailer 6$3,088 AUD
Retailer 20$3,207 AUD
Retailer 19$3,422 AUD
Retailer 15$3,424 AUD
Retailer 17$3,528 AUD
Retailer 18$3,596 AUD
Retailer 14$3,821 AUD
Retailer 9$3,839 AUD
Retailer 10$3,988 AUD
Retailer 16$4,128 AUD
Retailer 3$4,356 AUD
Retailer 11$4,385 AUD
Retailer 5$4,409 AUD
Retailer 13$4,472 AUD
Retailer 12$4,527 AUD
Retailer 4$4,623 AUD
Retailer 7$4,920 AUD
Retailer 2$5,168 AUD
Retailer 8$7,125 AUD
NZ Jewellers$8,859 AUD

32 data points across 20 retailers

20 retailers$3,088 AUD to $8,859 AUD

A
Cheapest Retailer
-
$3,088 AUD
$2,169 USD
A
Retailer 2
-
$3,207 AUD
HK$17,600 HKD
View
A
Retailer 3
-
$3,422 AUD
$2,404 USD
View
A
Retailer 4
-
$3,424 AUD
$2,405 USD
View
B+
Retailer 5
-
$3,528 AUD
$2,478 USD
View
Final sale: no returns
A
Retailer 6
-
$3,596 AUD
$2,526 USD
View
A
Retailer 7
-
$3,821 AUD
$2,684 USD
View
B+
Retailer 8
-
$3,839 AUD
$2,697 USD
View
B+
Retailer 9
-
$3,988 AUD
$2,801 USD
View
B+
Retailer 10
-
$4,128 AUD
$2,900 USD
View
B+
Retailer 11
-
$4,356 AUD
$3,060 USD
View
B+
Retailer 12
-
$4,385 AUD
$3,080 USD
View
B+
Retailer 13
-
$4,406 AUD
$3,095 USD
View
B+
Retailer 14
-
$4,409 AUD
$3,097 USD
View
B+
Retailer 15
-
$4,472 AUD
£2,473 GBP
View
B+
Retailer 16
-
$4,527 AUD
$3,180 USD
View
B+
Retailer 17
-
$4,623 AUD
€3,093 EUR
View
B
Retailer 18
-
$5,168 AUD
$3,630 USD
View
B
Retailer 19
-
$7,125 AUD
£3,941 GBP
View
Most Expensive
C
NZ Jewellers
a2531da3-f55b-4c00-98e4-bee2efb2287a · Oct 30
$8,859 AUD
$6,223 USD
View
19 more retailers have this diamond
Prices start from $3,088 AUDSave up to $5,771 AUD

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
$3,088 AUD