CaratHunter
Plans
Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 1509673927

Certificate GIA 1509673927

Diamond specifications and retailer prices

From $4,090 NZD
$2,305 USD
As of October 30, 2026
Save $6,728 NZD (62%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,818 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1509673927. Listed at 21 retailers as of October 30, 2026, with prices from $4,090 to $10,818, a $6,728 spread on the same certified stone. NZ Jewellers lists it at $10,818. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.64°
Pavilion angle38.88°
OriginNatural
Grading LabGIA
CertificateGIA 1509673927
Dimensions7.95 × 5.84 × 3.76 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Natural
Top View
7.95 mm5.84 mm1.20 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1509673927
Side View
Table 60.0%Crown 41.64°Girdle: STK-VTKPavilion 38.88°Culet: NoneDepth 64.4%

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: Oct 30
Current: $6,360 NZD|Low: $3,731 NZD|High: $8,759 NZD|Avg: $5,381 NZD|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6$4,090 NZD
Retailer 7$4,276 NZD
Retailer 8$4,326 NZD
Retailer 2$4,443 NZD
Retailer 10$4,869 NZD
Retailer 3$5,532 NZD
Retailer 9$5,798 NZD
Retailer 4$6,059 NZD
Retailer 1$6,360 NZD
Retailer 5$8,664 NZD

40 data points across 10 retailers

21 retailers$4,090 NZD to $10,818 NZD

B+
Cheapest Retailer
-
$4,090 NZD
$2,305 USD
B+
Retailer 2
-
$4,214 NZD
$2,375 USD
View
B+
Retailer 3
-
$4,239 NZD
$2,389 USD
View
B+
Retailer 4
-
$4,276 NZD
$2,410 USD
View
B
Retailer 5
-
$4,326 NZD
$2,438 USD
View
Final sale: no returns
B
Retailer 6
-
$4,443 NZD
$2,504 USD
View
B
Retailer 7
-
$4,622 NZD
$2,605 USD
View
B
Retailer 8
-
$4,688 NZD
$2,642 USD
View
B
Retailer 9
-
$4,688 NZD
$2,642 USD
View
B
Retailer 10
-
$4,869 NZD
$2,744 USD
View
B
Retailer 11
-
$5,358 NZD
$3,020 USD
View
B
Retailer 12
-
$5,358 NZD
$3,020 USD
View
B
Retailer 13
-
$5,410 NZD
$3,049 USD
View
B
Retailer 14
-
$5,532 NZD
£2,455 GBP
View
B
Retailer 15
-
$5,536 NZD
$3,120 USD
View
Retailer 16
-
$5,798 NZD
A$5,027 AUD
View
Price last confirmed 23 days ago
B
Retailer 17
-
$6,059 NZD
€3,252 EUR
View
B
Retailer 18
-
$6,360 NZD
ZAR 57,911 ZAR
View
B
Retailer 19
-
$7,458 NZD
$4,203 USD
View
B
Retailer 20
-
$8,664 NZD
£3,845 GBP
View
Most Expensive
C
NZ Jewellers
0b087637-2353-45d1-a0da-6982b8b6de56 · Oct 30
$10,818 NZD
$6,097 USD
View
20 more retailers have this diamond
Prices start from $4,090 NZDSave up to $6,728 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+
1.20ct Oval
$4,090 NZD