Round|Natural|GIA

0.80ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2556718136

Certificate GIA 2556718136

Diamond specifications and retailer prices

From $1,243 USD
As of October 31, 2026
Save $2,384 USD (66%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,627 USD 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
Color
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: $3,627 USD|Low: $1,140 USD|High: $3,627 USD|Avg: $1,883 USD
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 7$1,243 USD
Retailer 8$1,248 USD
Retailer 5$1,255 USD
Retailer 16$1,347 USD
Retailer 18$1,347 USD
Retailer 17$1,409 USD
Retailer 9$1,455 USD
Retailer 3$1,555 USD
Retailer 6$1,630 USD
Retailer 2$1,650 USD
Retailer 4$1,778 USD
Retailer 11$1,881 USD
Retailer 10$1,941 USD
Retailer 12$2,077 USD
Retailer 15$2,194 USD
Retailer 13$2,620 USD
Retailer 14$3,137 USD
NZ Jewellers$3,627 USD

31 data points across 18 retailers

27 retailers$1,243 USD to $3,627 USD

A
Cheapest Retailer
-
$1,243 USD
Final sale: no returns
A
Retailer 2
-
$1,248 USD
View
A
Retailer 3
-
$1,255 USD
View
A
Retailer 4
-
$1,347 USD
View
A
Retailer 5
-
$1,347 USD
View
B+
Retailer 6
-
$1,409 USD
View
B+
Retailer 7
-
$1,411 USD
View
B+
Retailer 8
-
$1,432 USD
View
B+
Retailer 9
-
$1,450 USD
View
B+
Retailer 10
-
$1,455 USD
View
B+
Retailer 11
-
$1,550 USD
View
B+
Retailer 12
-
$1,550 USD
View
B+
Retailer 13
-
$1,555 USD
View
Retailer 14
-
$1,555 USD
View
Price last confirmed 11 days ago
B+
Retailer 15
-
$1,600 USD
View
B+
Retailer 16
-
$1,630 USD
View
B+
Retailer 17
-
$1,650 USD
£1,299 GBP
View
B+
Retailer 18
-
$1,778 USD
£1,400 GBP
View
B
Retailer 19
-
$1,847 USD
View
B+
Retailer 20
-
$1,881 USD
£1,481 GBP
View
Retailer 21
-
$1,941 USD
A$2,986 AUD
View
Price last confirmed 26 days ago
B+
Retailer 22
-
$2,077 USD
€1,978 EUR
View
B
Retailer 23
-
$2,194 USD
ZAR 35,449 ZAR
View
B
Retailer 24
-
$2,620 USD
£2,063 GBP
View
B
Retailer 25
-
$3,137 USD
£2,470 GBP
View
B
Retailer 26
-
$3,627 USD
View
Most Expensive
NZ Jewellers
79ec246e-9ab2-4b6a-9b13-5dd2c3e82748 · Oct 20
$3,627 USD
View
Price last confirmed 11 days ago
26 more retailers have this diamond
Prices start from $1,243 USDSave up to $2,384 USD

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
$1,243 USD