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Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 7558784147

Certificate GIA 7558784147

Diamond specifications and retailer prices

From $5,630 NZD
$3,173 USD
As of October 28, 2026
Save $4,696 NZD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,327 NZD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two 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 7558784147. Listed at 14 retailers as of October 26, 2026, with prices from $5,630 to $10,327, a $4,696 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,327. 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

1.51
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle38.87°
OriginNatural
Grading LabGIA
CertificateGIA 7558784147
Dimensions8.95 × 6.41 × 3.98 mm
L/W Ratio1.40
Culet sizeNone
Top View
8.95 mm6.41 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558784147
Side View
Table 59.0%Crown 40.3°Girdle: MED-THKPavilion 38.87°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $6,567 NZD|Low: $5,630 NZD|High: $11,099 NZD|Avg: $7,339 NZD|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
October 29, 2026
Retailer 9$5,630 NZD
Retailer 7$5,726 NZD
Retailer 8$5,735 NZD
Retailer 3$5,923 NZD
Retailer 6$6,017 NZD
Retailer 1$6,567 NZD
Retailer 2$6,782 NZD
Retailer 11$7,115 NZD
Retailer 10$7,186 NZD
Retailer 12$7,294 NZD
Retailer 5$7,519 NZD
Retailer 4$9,494 NZD
Wholesale Diamonds Direct$10,327 NZD

36 data points across 13 retailers

14 retailers$5,630 NZD to $10,327 NZD

A
Cheapest Retailer
-
$5,630 NZD
$3,173 USD
A
Retailer 2
-
$5,726 NZD
$3,227 USD
View
A
Retailer 3
-
$5,735 NZD
SGD 4,368 SGD
View
A
Retailer 4
-
$5,923 NZD
$3,338 USD
View
A
Retailer 5
-
$6,017 NZD
$3,391 USD
View
A
Retailer 6
-
$6,567 NZD
£2,914 GBP
View
B+
Retailer 7
-
$6,782 NZD
SGD 5,165 SGD
View
A
Retailer 8
-
$7,115 NZD
$4,010 USD
View
A
Retailer 9
-
$7,186 NZD
$4,050 USD
View
A
Retailer 10
-
$7,294 NZD
$4,111 USD
View
B+
Retailer 11
-
$7,519 NZD
€4,036 EUR
View
B+
Retailer 12
-
$7,832 NZD
$4,414 USD
View
B+
Retailer 13
-
$9,494 NZD
$5,351 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
593994293 · Oct 26
$10,327 NZD
$5,820 USD
View
13 more retailers have this diamond
Prices start from $5,630 NZDSave up to $4,696 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
1.51ct Oval
$5,630 NZD