Round|Natural|GIA

0.80ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2556718136

Certificate GIA 2556718136

Diamond specifications and retailer prices

From HK$9,752 HKD
$1,243 USD
As of October 31, 2026
Save HK$18,704 HKD (66%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: HK$28,456 HKD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556718136. Listed at 27 retailers as of October 30, 2026, with a 192% 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

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556718136
Dimensions5.97 × 5.95 × 3.68 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.97 mm5.95 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556718136
Side View
Table 59.0%Crown 34°Girdle: THN-STKPavilion 41.6°Culet: NoneDepth 61.8%

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 31
Current: HK$28,456 HKD|Low: HK$8,944 HKD|High: HK$28,456 HKD|Avg: HK$14,738 HKD
NZ Jewellers
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
November 1, 2026
Retailer 7HK$9,752 HKD
Retailer 8HK$9,791 HKD
Retailer 5HK$9,846 HKD
Retailer 16HK$10,568 HKD
Retailer 18HK$10,568 HKD
Retailer 17HK$11,055 HKD
Retailer 9HK$11,415 HKD
Retailer 3HK$12,200 HKD
Retailer 6HK$12,788 HKD
Retailer 13HK$12,942 HKD
Retailer 4HK$13,950 HKD
Retailer 2HK$14,711 HKD
Retailer 10HK$15,225 HKD
Retailer 11HK$16,179 HKD
Retailer 15HK$17,216 HKD
Retailer 12HK$20,446 HKD
Retailer 14HK$24,611 HKD
NZ JewellersHK$28,456 HKD

30 data points across 18 retailers

27 retailersHK$9,752 HKD to HK$28,456 HKD

A
Cheapest Retailer
-
HK$9,752 HKD
$1,243 USD
Final sale: no returns
A
Retailer 2
-
HK$9,791 HKD
$1,248 USD
View
A
Retailer 3
-
HK$9,846 HKD
$1,255 USD
View
A
Retailer 4
-
HK$10,568 HKD
$1,347 USD
View
A
Retailer 5
-
HK$10,568 HKD
$1,347 USD
View
B+
Retailer 6
-
HK$11,055 HKD
$1,409 USD
View
B+
Retailer 7
-
HK$11,070 HKD
$1,411 USD
View
B+
Retailer 8
-
HK$11,235 HKD
$1,432 USD
View
B+
Retailer 9
-
HK$11,376 HKD
$1,450 USD
View
B+
Retailer 10
-
HK$11,415 HKD
$1,455 USD
View
B+
Retailer 11
-
HK$12,161 HKD
$1,550 USD
View
B+
Retailer 12
-
HK$12,161 HKD
$1,550 USD
View
B+
Retailer 13
-
HK$12,200 HKD
$1,555 USD
View
Retailer 14
-
HK$12,200 HKD
$1,555 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
HK$12,553 HKD
$1,600 USD
View
B+
Retailer 16
-
HK$12,788 HKD
$1,630 USD
View
B+
Retailer 17
-
HK$12,942 HKD
£1,299 GBP
View
B+
Retailer 18
-
HK$13,950 HKD
£1,400 GBP
View
B
Retailer 19
-
HK$14,487 HKD
$1,847 USD
View
B+
Retailer 20
-
HK$14,711 HKD
£1,476 GBP
View
Retailer 21
-
HK$15,225 HKD
A$2,986 AUD
View
Price last confirmed 27 days ago
B+
Retailer 22
-
HK$16,179 HKD
€1,964 EUR
View
B
Retailer 23
-
HK$17,216 HKD
ZAR 35,449 ZAR
View
B
Retailer 24
-
HK$20,446 HKD
£2,052 GBP
View
B
Retailer 25
-
HK$24,611 HKD
£2,470 GBP
View
B
Retailer 26
-
HK$28,456 HKD
$3,627 USD
View
Most Expensive
NZ Jewellers
79ec246e-9ab2-4b6a-9b13-5dd2c3e82748 · Oct 20
HK$28,456 HKD
$3,627 USD
View
Price last confirmed 12 days ago
26 more retailers have this diamond
Prices start from HK$9,752 HKDSave up to HK$18,704 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
0.80ct Round
HK$9,752 HKD