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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 €1,357 EUR
As of November 1, 2026
Save €2,793 EUR (67%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €4,150 EUR 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 €1,357 to €4,150, a €2,793 spread on the same certified stone. NZ Jewellers lists it at €4,150. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €4,150 EUR|Low: €1,304 EUR|High: €4,150 EUR|Avg: €2,064 EUR
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 10€1,357 EUR
Retailer 12€1,404 EUR
Retailer 11€1,422 EUR
Retailer 6€1,541 EUR
Retailer 8€1,541 EUR
Retailer 14€1,603 EUR
Retailer 7€1,612 EUR
Retailer 21€1,641 EUR
Retailer 13€1,738 EUR
Retailer 20€1,738 EUR
Retailer 9€1,779 EUR
Retailer 16€1,800 EUR
Retailer 17€1,825 EUR
Retailer 2€1,864 EUR
Retailer 18€2,007 EUR
Retailer 15€2,133 EUR
Retailer 19€2,305 EUR
Retailer 4€2,534 EUR
Retailer 3€2,980 EUR
Retailer 5€3,111 EUR
NZ Jewellers€4,150 EUR

29 data points across 21 retailers

25 retailers€1,357 EUR to €4,150 EUR

A
Cheapest Retailer
-
€1,357 EUR
A
Retailer 2
-
€1,404 EUR
View
A
Retailer 3
-
€1,422 EUR
View
Final sale: no returns
A
Retailer 4
-
€1,541 EUR
View
Retailer 5
-
€1,541 EUR
View
Price last confirmed 8 days ago
A
Retailer 6
-
€1,550 EUR
View
A
Retailer 7
-
€1,603 EUR
View
A
Retailer 8
-
€1,605 EUR
View
A
Retailer 9
-
€1,612 EUR
View
B+
Retailer 10
-
€1,641 EUR
View
B+
Retailer 11
-
€1,738 EUR
View
B+
Retailer 12
-
€1,738 EUR
View
B+
Retailer 13
-
€1,779 EUR
View
B+
Retailer 14
-
€1,800 EUR
View
B+
Retailer 15
-
€1,825 EUR
View
B+
Retailer 16
-
€1,864 EUR
View
B+
Retailer 17
-
€2,007 EUR
View
B+
Retailer 18
-
€2,027 EUR
View
B+
Retailer 19
-
€2,133 EUR
View
Retailer 20
-
€2,219 EUR
View
Price last confirmed 32 days ago
B+
Retailer 21
-
€2,305 EUR
View
B+
Retailer 22
-
€2,534 EUR
View
B
Retailer 23
-
€2,980 EUR
View
Retailer 24
-
€3,111 EUR
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
b6d2e8fe-030a-47c9-9295-07942ee8031c · Nov 5
€4,150 EUR
$4,633 USD
View
24 more retailers have this diamond
Prices start from €1,357 EURSave up to €2,793 EUR

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
€1,357 EUR