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Oval|Natural|GIA

1.00ct J SI1 Oval Natural Diamond

GD • J/SI1 • GIA 6375818599

Certificate GIA 6375818599

Diamond specifications and retailer prices

From $2,831 AUD
As of November 6, 2026
Save $5,107 AUD (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,938 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6375818599. Listed at 20 retailers as of November 5, 2026, with prices from $2,831 to $7,938, a $5,107 spread on the same certified stone. NZ Jewellers lists it at $7,938. 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

1.00
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6375818599
Dimensions8.68 × 5.52 × 3.23 mm
L/W Ratio1.57
Top View
8.68 mm5.52 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6375818599
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.6%

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 6
Current: $4,715 AUD|Low: $2,640 AUD|High: $6,731 AUD|Avg: $4,053 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$2,831 AUD
Retailer 9$3,106 AUD
Retailer 8$3,173 AUD
Retailer 7$3,180 AUD
Retailer 2$3,598 AUD
Retailer 3$4,017 AUD
Retailer 10$4,253 AUD
Retailer 4$4,634 AUD
Retailer 1$4,715 AUD
Retailer 5$6,651 AUD

45 data points across 10 retailers

20 retailers$2,831 AUD to $7,938 AUD

B+
Cheapest Retailer
-
$2,831 AUD
B
Retailer 2
-
$3,106 AUD
View
B
Retailer 3
-
$3,173 AUD
View
Final sale: no returns
B
Retailer 4
-
$3,180 AUD
View
B
Retailer 5
-
$3,318 AUD
View
B
Retailer 6
-
$3,435 AUD
View
B
Retailer 7
-
$3,439 AUD
View
Retailer 8
-
$3,439 AUD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$3,598 AUD
View
B
Retailer 10
-
$3,959 AUD
View
B
Retailer 11
-
$3,959 AUD
View
B
Retailer 12
-
$3,969 AUD
View
B
Retailer 13
-
$4,017 AUD
View
B
Retailer 14
-
$4,090 AUD
View
Retailer 15
-
$4,253 AUD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$4,359 AUD
View
B
Retailer 17
-
$4,634 AUD
View
B
Retailer 18
-
$4,715 AUD
View
C
Retailer 19
-
$6,651 AUD
View
Most Expensive
C
NZ Jewellers
e519cd34-a49e-4053-9f6f-69489deec606 · Nov 5
$7,938 AUD
$5,454 USD
View
19 more retailers have this diamond
Prices start from $2,831 AUDSave up to $5,107 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.

B+
1.00ct Oval
$2,831 AUD