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Round|Natural|GIA

0.80ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1555455999

Certificate GIA 1555455999

Diamond specifications and retailer prices

From HK$11,885 HKD
As of November 1, 2026
Save HK$24,461 HKD (67%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$36,347 HKD at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555455999. Listed at 25 retailers as of November 1, 2026, with prices from HK$11,885 to HK$36,347, a HK$24,461 spread on the same certified stone. NZ Jewellers lists it at HK$36,347. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1555455999
Dimensions5.90 × 5.95 × 3.70 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Crystal
Top View
5.90 mm5.95 mm0.80 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555455999
Side View
Table 57.0%Crown 35°Girdle: THN-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: Nov 1
Current: HK$36,347 HKD|Low: HK$11,423 HKD|High: HK$36,347 HKD|Avg: HK$18,076 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
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 10HK$11,885 HKD
Retailer 12HK$12,301 HKD
Retailer 11HK$12,458 HKD
Retailer 6HK$13,502 HKD
Retailer 8HK$13,502 HKD
Retailer 14HK$14,043 HKD
Retailer 7HK$14,121 HKD
Retailer 21HK$14,372 HKD
Retailer 13HK$15,220 HKD
Retailer 20HK$15,220 HKD
Retailer 9HK$15,581 HKD
Retailer 16HK$15,769 HKD
Retailer 17HK$15,989 HKD
Retailer 2HK$16,326 HKD
Retailer 18HK$17,581 HKD
Retailer 15HK$18,679 HKD
Retailer 19HK$20,186 HKD
Retailer 4HK$22,194 HKD
Retailer 3HK$26,101 HKD
Retailer 5HK$27,246 HKD
NZ JewellersHK$36,347 HKD

29 data points across 21 retailers

25 retailersHK$11,885 HKD to HK$36,347 HKD

A
Cheapest Retailer
-
HK$11,885 HKD
A
Retailer 2
-
HK$12,301 HKD
View
A
Retailer 3
-
HK$12,458 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$13,502 HKD
View
Retailer 5
-
HK$13,502 HKD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$13,580 HKD
View
A
Retailer 7
-
HK$14,043 HKD
View
A
Retailer 8
-
HK$14,059 HKD
View
A
Retailer 9
-
HK$14,121 HKD
View
B+
Retailer 10
-
HK$14,372 HKD
View
B+
Retailer 11
-
HK$15,220 HKD
View
B+
Retailer 12
-
HK$15,220 HKD
View
B+
Retailer 13
-
HK$15,581 HKD
View
B+
Retailer 14
-
HK$15,769 HKD
View
B+
Retailer 15
-
HK$15,989 HKD
View
B+
Retailer 16
-
HK$16,326 HKD
View
B+
Retailer 17
-
HK$17,581 HKD
View
B+
Retailer 18
-
HK$17,754 HKD
View
B+
Retailer 19
-
HK$18,679 HKD
View
Retailer 20
-
HK$19,440 HKD
View
Price last confirmed 32 days ago
B+
Retailer 21
-
HK$20,186 HKD
View
B+
Retailer 22
-
HK$22,194 HKD
View
B
Retailer 23
-
HK$26,101 HKD
View
Retailer 24
-
HK$27,246 HKD
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
b6d2e8fe-030a-47c9-9295-07942ee8031c · Nov 5
HK$36,347 HKD
$4,633 USD
View
24 more retailers have this diamond
Prices start from HK$11,885 HKDSave up to HK$24,461 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.

A
0.80ct Round
HK$11,885 HKD