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Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2556600262

Certificate GIA 2556600262

Diamond specifications and retailer prices

From HK$18,822 HKD
$2,399 USD
As of October 30, 2026
Save HK$3,607 HKD (16%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$22,429 HKD at GemTrove · As of October 29, 2026
View at GemTrove

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 2556600262. Listed at 6 retailers as of October 29, 2026, with prices from HK$18,822 to HK$22,429, a HK$3,607 spread on the same certified stone. GemTrove lists it at HK$22,429. 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
FluorescenceStrong
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556600262
Dimensions6.58 × 6.53 × 4.10 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Natural
Top View
6.58 mm6.53 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556600262
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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 30
Current: HK$22,429 HKD|Low: HK$16,633 HKD|High: HK$23,339 HKD|Avg: HK$20,503 HKD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3HK$18,822 HKD
Retailer 4HK$19,057 HKD
Retailer 6HK$19,308 HKD
Retailer 2HK$20,290 HKD
Retailer 5HK$21,749 HKD
GemTroveHK$22,429 HKD

39 data points across 6 retailers

6 retailersHK$18,822 HKD to HK$22,429 HKD

A
Cheapest Retailer
-
HK$18,822 HKD
$2,399 USD
A
Retailer 2
-
HK$19,057 HKD
$2,429 USD
View
Final sale: no returns
A
Retailer 3
-
HK$19,308 HKD
MYR 10,024 MYR
View
A
Retailer 4
-
HK$20,290 HKD
£2,036 GBP
View
A
Retailer 5
-
HK$21,749 HKD
SGD 3,746 SGD
View
Most Expensive
A
GemTrove
GT-N-01363343-98 · Oct 29
HK$22,429 HKD
A$4,398 AUD
View
5 more retailers have this diamond
Prices start from HK$18,822 HKDSave up to HK$3,607 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$18,822 HKD