Oval|Natural|GIA

3.50ct H SI1 Oval Natural Diamond

ID • H/SI1 • GIA 1558688239

Certificate GIA 1558688239

Diamond specifications and retailer prices

From HK$346,380 HKD
$44,149 USD
As of October 31, 2026
Save HK$34,461 HKD (9%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$593,299 HKD at MOH London · As of October 21, 2026
View at MOH London

About this 3.5ct natural oval diamond

This 3.5ct natural oval sits in the three to five carat band, graded H 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 1558688239. Listed at 14 retailers as of October 31, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.50
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558688239
Dimensions12.14 × 8.67 × 5.22 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
12.14 mm8.67 mm3.50 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558688239
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.3%

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: Oct 31
Current: HK$593,299 HKD|Low: HK$337,655 HKD|High: HK$598,669 HKD|Avg: HK$413,070 HKD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 18HK$337,655 HKD
Retailer 10HK$340,908 HKD
Retailer 3HK$342,622 HKD
Retailer 17HK$346,380 HKD
Retailer 19HK$366,080 HKD
Retailer 9HK$379,269 HKD
Retailer 2HK$380,841 HKD
Retailer 15HK$393,611 HKD
Retailer 8HK$395,070 HKD
Retailer 4HK$403,427 HKD
Retailer 5HK$404,168 HKD
Retailer 16HK$409,357 HKD
Retailer 14HK$425,104 HKD
Retailer 13HK$435,588 HKD
Retailer 11HK$447,063 HKD
Retailer 6HK$455,091 HKD
Retailer 7HK$482,967 HKD
Retailer 12HK$504,629 HKD
MOH LondonHK$593,299 HKD

11 data points across 19 retailers

14 retailersHK$346,380 HKD to HK$380,841 HKD

Retailer 1
-
HK$342,622 HKD
$43,670 USD
Price last confirmed 11 days ago
B+
Retailer 2
-
HK$346,380 HKD
$44,149 USD
View
Final sale: no returns
Retailer 3
-
HK$379,269 HKD
$48,341 USD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
HK$380,841 HKD
£38,222 GBP
View
Retailer 5
-
HK$393,611 HKD
$50,169 USD
View
Price last confirmed 12 days ago
Retailer 6
-
HK$395,070 HKD
$50,355 USD
View
Price last confirmed 16 days ago
Retailer 7
-
HK$403,427 HKD
$51,420 USD
View
Price last confirmed 11 days ago
Retailer 8
-
HK$404,168 HKD
$51,515 USD
View
Price last confirmed 13 days ago
Retailer 9
-
HK$409,357 HKD
$52,176 USD
View
Price last confirmed 12 days ago
Retailer 10
-
HK$425,104 HKD
$54,183 USD
View
Price last confirmed 11 days ago
Retailer 11
-
HK$435,588 HKD
£43,716 GBP
View
Price last confirmed 11 days ago
Retailer 12
-
HK$482,967 HKD
ZAR 994,477 ZAR
View
Price last confirmed 15 days ago
Retailer 13
-
HK$504,629 HKD
£50,645 GBP
View
Price last confirmed 10 days ago
Most Expensive
MOH London
DCAC544E6 · Oct 21
HK$593,299 HKD
£59,544 GBP
View
Price last confirmed 11 days ago
13 more retailers have this diamond
Prices start from HK$346,380 HKDSave up to HK$34,461 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+
3.50ct Oval
HK$346,380 HKD