Oval|Natural|GIA

0.90ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 7518500909

Certificate GIA 7518500909

Diamond specifications and retailer prices

From HK$17,834 HKD
$2,273 USD
As of November 2, 2026
Save HK$9,596 HKD (35%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$47,328 HKD 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 25 retailers as of November 2, 2026, with a 54% 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: HK$26,536 HKD|Low: HK$16,312 HKD|High: HK$44,163 HKD|Avg: HK$26,740 HKD|+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 3HK$17,834 HKD
Retailer 8HK$18,925 HKD
Retailer 10HK$21,294 HKD
Retailer 11HK$22,244 HKD
Retailer 2HK$22,267 HKD
Retailer 9HK$25,458 HKD
Retailer 1HK$26,536 HKD
Retailer 4HK$27,368 HKD
Retailer 7HK$32,976 HKD
Retailer 6HK$38,065 HKD
Retailer 5HK$43,808 HKD

39 data points across 11 retailers

25 retailersHK$17,834 HKD to HK$27,430 HKD

B+
Cheapest Retailer
-
HK$17,834 HKD
$2,273 USD
Retailer 2
-
HK$18,368 HKD
$2,341 USD
View
Price last confirmed 13 days ago
B+
Retailer 3
-
HK$18,438 HKD
$2,350 USD
View
Retailer 4
-
HK$19,262 HKD
$2,455 USD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
HK$19,352 HKD
$2,466 USD
View
Retailer 6
-
HK$20,243 HKD
$2,580 USD
View
Price last confirmed 14 days ago
Retailer 7
-
HK$20,510 HKD
$2,614 USD
View
Price last confirmed 14 days ago
Retailer 8
-
HK$20,510 HKD
$2,614 USD
View
Price last confirmed 18 days ago
Retailer 9
-
HK$20,817 HKD
$2,653 USD
View
Price last confirmed 16 days ago
Retailer 10
-
HK$21,294 HKD
$2,714 USD
View
Price last confirmed 17 days ago
B
Retailer 11
-
HK$22,244 HKD
$2,835 USD
View
Retailer 12
-
HK$22,267 HKD
$2,838 USD
View
Price last confirmed 14 days ago
B
Retailer 13
-
HK$22,422 HKD
CA$3,969 CAD
View
Retailer 14
-
HK$23,460 HKD
$2,990 USD
View
Price last confirmed 14 days ago
Retailer 15
-
HK$23,664 HKD
$3,016 USD
View
Price last confirmed 15 days ago
Retailer 16
-
HK$24,244 HKD
$3,090 USD
View
Price last confirmed 15 days ago
Retailer 17
-
HK$25,458 HKD
A$4,992 AUD
View
Price last confirmed 30 days ago
B
Retailer 18
-
HK$25,955 HKD
$3,308 USD
View
B
Retailer 19
-
HK$26,536 HKD
€3,221 EUR
View
B
Retailer 20
-
HK$27,368 HKD
£2,747 GBP
View
B
Retailer 21
-
HK$27,430 HKD
$3,496 USD
View
Retailer 22
-
HK$32,624 HKD
$4,158 USD
View
Price last confirmed 7 days ago
Retailer 23
-
HK$32,976 HKD
ZAR 67,898 ZAR
View
Price last confirmed 16 days ago
Retailer 24
-
HK$38,065 HKD
£3,820 GBP
View
Price last confirmed 15 days ago
Most Expensive
NZ Jewellers
111379ab-9cd7-4522-9ec0-5d5e7d19f95a · Oct 17
HK$47,328 HKD
$6,032 USD
View
Price under review
24 more retailers have this diamond
Prices start from HK$17,834 HKDSave up to HK$9,596 HKD

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
HK$17,834 HKD