Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6502436101

Certificate GIA 6502436101

Diamond specifications and retailer prices

From HK$24,881 HKD
$3,171 USD
As of October 29, 2026
Save HK$41,343 HKD (62%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: HK$66,224 HKD at Diamond Quarter · As of October 28, 2026
View at Diamond Quarter

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502436101. Listed at 27 retailers as of October 28, 2026, with prices from HK$24,881 to HK$66,224, a HK$41,343 spread on the same certified stone. Diamond Quarter lists it at HK$66,224. 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

1.09
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6502436101
Dimensions6.67 × 6.65 × 4.06 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Top View
6.67 mm6.65 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6502436101
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.0%

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: Oct 29
Current: HK$33,647 HKD|Low: HK$24,881 HKD|High: HK$56,601 HKD|Avg: HK$33,797 HKD|+1.4%
Retailer 1
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
October 30, 2026
Retailer 7HK$24,881 HKD
Retailer 16HK$26,623 HKD
Retailer 3HK$27,674 HKD
Retailer 15HK$28,679 HKD
Retailer 13HK$29,954 HKD
Retailer 8HK$30,295 HKD
Retailer 1HK$33,647 HKD
Retailer 4HK$33,661 HKD
Retailer 14HK$33,661 HKD
Retailer 2HK$34,367 HKD
Retailer 11HK$34,838 HKD
Retailer 6HK$35,668 HKD
Retailer 5HK$37,451 HKD
Retailer 12HK$37,518 HKD
Retailer 9HK$40,304 HKD
Retailer 10HK$55,425 HKD

44 data points across 16 retailers

27 retailersHK$24,881 HKD to HK$66,224 HKD

A
Cheapest Retailer
-
HK$24,881 HKD
$3,171 USD
A
Retailer 2
-
HK$26,623 HKD
$3,393 USD
View
Retailer 3
-
HK$27,502 HKD
$3,505 USD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
HK$27,674 HKD
$3,527 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$28,679 HKD
$3,655 USD
View
B+
Retailer 6
-
HK$29,954 HKD
$3,818 USD
View
B+
Retailer 7
-
HK$29,989 HKD
$3,822 USD
View
B+
Retailer 8
-
HK$29,989 HKD
$3,822 USD
View
Retailer 9
-
HK$30,295 HKD
$3,861 USD
View
Price last confirmed 53 days ago
Retailer 10
-
HK$30,295 HKD
$3,861 USD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
HK$31,142 HKD
$3,969 USD
View
B+
Retailer 12
-
HK$33,647 HKD
£3,377 GBP
View
B+
Retailer 13
-
HK$33,661 HKD
$4,290 USD
View
B+
Retailer 14
-
HK$33,661 HKD
$4,290 USD
View
B+
Retailer 15
-
HK$34,367 HKD
$4,380 USD
View
B+
Retailer 16
-
HK$34,838 HKD
$4,440 USD
View
Retailer 17
-
HK$34,956 HKD
$4,455 USD
View
Price last confirmed 53 days ago
Retailer 18
-
HK$34,956 HKD
$4,455 USD
View
Price last confirmed 30 days ago
Retailer 19
-
HK$35,668 HKD
A$6,994 AUD
View
Price last confirmed 20 days ago
Retailer 20
-
HK$37,451 HKD
$4,773 USD
View
Price last confirmed 7 days ago
B+
Retailer 21
-
HK$37,518 HKD
£3,765 GBP
View
B+
Retailer 22
-
HK$40,304 HKD
ZAR 82,983 ZAR
View
B
Retailer 23
-
HK$55,425 HKD
£5,562 GBP
View
B
Retailer 24
-
HK$57,663 HKD
$7,349 USD
View
Retailer 25
-
HK$58,260 HKD
$7,425 USD
View
Price last confirmed 59 days ago
Retailer 26
-
HK$58,260 HKD
$7,425 USD
View
Price last confirmed 32 days ago
Most Expensive
B
Diamond Quarter
1.09SI1E65017677N · Oct 28
HK$66,224 HKD
£6,646 GBP
View
26 more retailers have this diamond
Prices start from HK$24,881 HKDSave up to HK$41,343 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.

A
1.09ct Round
HK$24,881 HKD