Round|Natural|GIA

0.80ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2556718136

Certificate GIA 2556718136

Diamond specifications and retailer prices

From $2,205 NZD
$1,243 USD
As of November 2, 2026
Save $4,230 NZD (66%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $6,435 NZD 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: Nov 2
Current: $6,435 NZD|Low: $2,023 NZD|High: $6,435 NZD|Avg: $3,307 NZD
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 2, 2026
Retailer 7$2,205 NZD
Retailer 8$2,214 NZD
Retailer 5$2,227 NZD
Retailer 16$2,390 NZD
Retailer 18$2,390 NZD
Retailer 17$2,500 NZD
Retailer 9$2,582 NZD
Retailer 3$2,759 NZD
Retailer 6$2,892 NZD
Retailer 2$2,902 NZD
Retailer 4$3,155 NZD
Retailer 11$3,327 NZD
Retailer 10$3,443 NZD
Retailer 12$3,659 NZD
Retailer 15$3,893 NZD
Retailer 13$4,624 NZD
Retailer 14$5,566 NZD
NZ Jewellers$6,435 NZD

30 data points across 18 retailers

27 retailers$2,205 NZD to $6,435 NZD

A
Cheapest Retailer
-
$2,205 NZD
$1,243 USD
Final sale: no returns
A
Retailer 2
-
$2,214 NZD
$1,248 USD
View
A
Retailer 3
-
$2,227 NZD
$1,255 USD
View
A
Retailer 4
-
$2,390 NZD
$1,347 USD
View
A
Retailer 5
-
$2,390 NZD
$1,347 USD
View
B+
Retailer 6
-
$2,500 NZD
$1,409 USD
View
B+
Retailer 7
-
$2,504 NZD
$1,411 USD
View
B+
Retailer 8
-
$2,541 NZD
$1,432 USD
View
B+
Retailer 9
-
$2,573 NZD
$1,450 USD
View
B+
Retailer 10
-
$2,582 NZD
$1,455 USD
View
B+
Retailer 11
-
$2,750 NZD
$1,550 USD
View
B+
Retailer 12
-
$2,750 NZD
$1,550 USD
View
B+
Retailer 13
-
$2,759 NZD
$1,555 USD
View
Retailer 14
-
$2,759 NZD
$1,555 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
$2,839 NZD
$1,600 USD
View
B+
Retailer 16
-
$2,892 NZD
$1,630 USD
View
B+
Retailer 17
-
$2,902 NZD
£1,288 GBP
View
B+
Retailer 18
-
$3,155 NZD
£1,400 GBP
View
B
Retailer 19
-
$3,276 NZD
$1,847 USD
View
B+
Retailer 20
-
$3,327 NZD
£1,476 GBP
View
Retailer 21
-
$3,443 NZD
A$2,986 AUD
View
Price last confirmed 27 days ago
B+
Retailer 22
-
$3,659 NZD
€1,964 EUR
View
B
Retailer 23
-
$3,893 NZD
ZAR 35,449 ZAR
View
B
Retailer 24
-
$4,624 NZD
£2,052 GBP
View
B
Retailer 25
-
$5,566 NZD
£2,470 GBP
View
B
Retailer 26
-
$6,435 NZD
$3,627 USD
View
Most Expensive
NZ Jewellers
79ec246e-9ab2-4b6a-9b13-5dd2c3e82748 · Oct 20
$6,435 NZD
$3,627 USD
View
Price last confirmed 13 days ago
26 more retailers have this diamond
Prices start from $2,205 NZDSave up to $4,230 NZD

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
$2,205 NZD