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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 7551184900

Certificate GIA 7551184900

Diamond specifications and retailer prices

From $2,907 NZD
HK$12,800 HKD
As of November 1, 2026
Save $5,102 NZD (64%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,009 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded J 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 7551184900. Listed at 23 retailers as of October 30, 2026, with prices from $2,907 to $8,009, a $5,102 spread on the same certified stone. NZ Jewellers lists it at $8,009. 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

1.20
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.4°
Pavilion angle37.8°
OriginNatural
Grading LabGIA
CertificateGIA 7551184900
Dimensions8.22 × 5.92 × 3.84 mm
L/W Ratio1.39
Girdle conditionFaceted
Top View
8.22 mm5.92 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551184900
Side View
Table 57.0%Crown 38.4°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 64.9%

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 1
Current: $8,009 NZD|Low: $2,884 NZD|High: $8,245 NZD|Avg: $4,210 NZD|-2.9%
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
Retailer 21
Retailer 22
November 1, 2026
Retailer 17$2,907 NZD
Retailer 14$3,135 NZD
Retailer 12$3,204 NZD
Retailer 20$3,208 NZD
Retailer 9$3,329 NZD
Retailer 8$3,366 NZD
Retailer 6$3,471 NZD
Retailer 11$3,471 NZD
Retailer 4$3,540 NZD
Retailer 7$3,630 NZD
Retailer 5$3,641 NZD
Retailer 2$3,737 NZD
Retailer 21$3,850 NZD
Retailer 22$3,850 NZD
Retailer 3$3,992 NZD
Retailer 15$4,005 NZD
Retailer 16$4,203 NZD
Retailer 10$4,677 NZD
Retailer 18$4,709 NZD
Retailer 19$4,879 NZD
Retailer 13$6,711 NZD
NZ Jewellers$8,009 NZD

24 data points across 22 retailers

23 retailers$2,907 NZD to $8,009 NZD

A
Cheapest Retailer
-
$2,907 NZD
HK$12,800 HKD
A
Retailer 2
-
$3,135 NZD
$1,767 USD
View
B+
Retailer 3
-
$3,204 NZD
$1,806 USD
View
Final sale: no returns
A
Retailer 4
-
$3,208 NZD
$1,808 USD
View
A
Retailer 5
-
$3,329 NZD
$1,876 USD
View
A
Retailer 6
-
$3,366 NZD
$1,897 USD
View
B+
Retailer 7
-
$3,471 NZD
$1,956 USD
View
B+
Retailer 8
-
$3,471 NZD
$1,956 USD
View
B+
Retailer 9
-
$3,540 NZD
$1,995 USD
View
B+
Retailer 10
-
$3,630 NZD
$2,046 USD
View
B+
Retailer 11
-
$3,641 NZD
$2,052 USD
View
B+
Retailer 12
-
$3,737 NZD
£1,658 GBP
View
B+
Retailer 13
-
$3,850 NZD
$2,170 USD
View
B+
Retailer 14
-
$3,850 NZD
$2,170 USD
View
B+
Retailer 15
-
$3,992 NZD
$2,250 USD
View
B+
Retailer 16
-
$4,005 NZD
$2,257 USD
View
B+
Retailer 17
-
$4,203 NZD
£1,865 GBP
View
B
Retailer 18
-
$4,677 NZD
$2,636 USD
View
B+
Retailer 19
-
$4,709 NZD
ZAR 42,872 ZAR
View
B+
Retailer 20
-
$4,879 NZD
€2,619 EUR
View
Retailer 21
-
$4,965 NZD
A$4,305 AUD
View
Price last confirmed 25 days ago
B
Retailer 22
-
$6,711 NZD
£2,978 GBP
View
Most Expensive
B
NZ Jewellers
dc54fc18-cd9f-41be-b7cc-6cae77bc9f17 · Oct 30
$8,009 NZD
$4,514 USD
View
22 more retailers have this diamond
Prices start from $2,907 NZDSave up to $5,102 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
1.20ct Oval
$2,907 NZD