Oval|Natural|GIA

0.90ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 7518500909

Certificate GIA 7518500909

Diamond specifications and retailer prices

From $4,040 NZD
$2,273 USD
As of November 2, 2026
Save $3,350 NZD (45%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $10,721 NZD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 0.9ct natural oval diamond

This 0.9ct natural oval sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7518500909. Listed at 26 retailers as of October 26, 2026, with a 83% 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

0.90
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.11°
Pavilion angle34.99°
OriginNatural
Grading LabGIA
CertificateGIA 7518500909
Dimensions7.59 × 5.42 × 3.24 mm
L/W Ratio1.40
Key to symbols
Crystal, Cloud, Feather
Top View
7.59 mm5.42 mm0.90 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7518500909
Side View
Table 63.0%Crown 36.11°Girdle: THK-VTKPavilion 34.99°Culet: NoneDepth 59.8%

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 2
Current: $6,011 NZD|Low: $3,695 NZD|High: $10,004 NZD|Avg: $6,057 NZD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$4,040 NZD
Retailer 8$4,287 NZD
Retailer 10$4,824 NZD
Retailer 11$5,039 NZD
Retailer 2$5,044 NZD
Retailer 9$5,767 NZD
Retailer 1$6,011 NZD
Retailer 4$6,199 NZD
Retailer 7$7,470 NZD
Retailer 6$8,622 NZD
Retailer 5$9,923 NZD

39 data points across 11 retailers

26 retailers$4,040 NZD to $7,390 NZD

B+
Cheapest Retailer
-
$4,040 NZD
$2,273 USD
Retailer 2
-
$4,161 NZD
$2,341 USD
View
Price last confirmed 13 days ago
B+
Retailer 3
-
$4,177 NZD
$2,350 USD
View
Retailer 4
-
$4,363 NZD
$2,455 USD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$4,384 NZD
$2,466 USD
View
Retailer 6
-
$4,585 NZD
$2,580 USD
View
Price last confirmed 13 days ago
Retailer 7
-
$4,646 NZD
$2,614 USD
View
Price last confirmed 13 days ago
Retailer 8
-
$4,646 NZD
$2,614 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$4,716 NZD
$2,653 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$4,824 NZD
$2,714 USD
View
Price last confirmed 16 days ago
B
Retailer 11
-
$5,039 NZD
$2,835 USD
View
Retailer 12
-
$5,044 NZD
$2,838 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
$5,079 NZD
CA$3,969 CAD
View
Retailer 14
-
$5,314 NZD
$2,990 USD
View
Price last confirmed 13 days ago
Retailer 15
-
$5,314 NZD
$2,990 USD
View
Price last confirmed 14 days ago
Retailer 16
-
$5,360 NZD
$3,016 USD
View
Price last confirmed 14 days ago
Retailer 17
-
$5,492 NZD
$3,090 USD
View
Price last confirmed 14 days ago
Retailer 18
-
$5,767 NZD
A$4,992 AUD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$5,879 NZD
$3,308 USD
View
B
Retailer 20
-
$6,011 NZD
€3,221 EUR
View
B
Retailer 21
-
$6,199 NZD
£2,747 GBP
View
B
Retailer 22
-
$6,213 NZD
$3,496 USD
View
B
Retailer 23
-
$7,390 NZD
$4,158 USD
View
Retailer 24
-
$7,470 NZD
ZAR 67,898 ZAR
View
Price last confirmed 16 days ago
Retailer 25
-
$8,622 NZD
£3,820 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
111379ab-9cd7-4522-9ec0-5d5e7d19f95a · Oct 17
$10,721 NZD
$6,032 USD
View
Price under review
25 more retailers have this diamond
Prices start from $4,040 NZDSave up to $3,350 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+
0.90ct Oval
$4,040 NZD