Oval|Natural|GIA

1.00ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1553987872

Certificate GIA 1553987872

Diamond specifications and retailer prices

From $1,360 USD
As of November 6, 2026
Save $3,040 USD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,881 USD at NZ Jewellers · As of August 29, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553987872. Listed at 12 retailers as of November 5, 2026, with a 224% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553987872
Dimensions8.16 × 5.53 × 3.44 mm
L/W Ratio1.48
Girdle conditionThick
Top View
8.16 mm5.53 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553987872
Side View
Table 55.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.2%

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 6
Current: $4,400 USD|Low: $1,360 USD|High: $4,614 USD|Avg: $2,274 USD|-4.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,360 USD
Retailer 9$1,439 USD
Retailer 10$1,644 USD
Retailer 8$1,860 USD
Retailer 11$1,941 USD
Retailer 5$2,003 USD
Retailer 4$2,202 USD
Retailer 7$2,462 USD
Retailer 3$2,497 USD
Retailer 6$3,152 USD
NZ Jewellers$4,400 USD

34 data points across 11 retailers

12 retailers$1,360 USD to $4,400 USD

A
Cheapest Retailer
-
$1,360 USD
A
Retailer 2
-
$1,439 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,644 USD
View
B+
Retailer 4
-
$1,860 USD
View
B+
Retailer 5
-
$1,941 USD
View
B+
Retailer 6
-
$2,003 USD
View
B+
Retailer 7
-
$2,202 USD
View
B+
Retailer 8
-
$2,462 USD
View
Retailer 9
-
$2,497 USD
View
Price last confirmed 32 days ago
B
Retailer 10
-
$3,152 USD
View
B
Retailer 11
-
$4,400 USD
View
Most Expensive
NZ Jewellers
1efc91e5-184a-41a5-82b1-23cc35e29b1a · Aug 29
$4,881 USD
View
Price last confirmed 69 days ago
11 more retailers have this diamond
Prices start from $1,360 USDSave up to $3,040 USD

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
1.00ct Oval
$1,360 USD