Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2506352705

Certificate GIA 2506352705

Diamond specifications and retailer prices

From $935 USD
As of October 28, 2026
Save $1,834 USD (66%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,814 USD at NZ Jewellers · As of September 26, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2506352705. Listed at 21 retailers as of October 27, 2026, with a 196% 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2506352705
Dimensions5.92 × 5.88 × 3.68 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.92 mm5.88 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506352705
Side View
Table 58.0%Crown 35.5°Girdle: MED-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: Oct 28
Current: $2,769 USD|Low: $935 USD|High: $2,814 USD|Avg: $1,392 USD|-1.6%
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
October 30, 2026
Retailer 15$935 USD
Retailer 6$1,028 USD
Retailer 5$1,048 USD
Retailer 3$1,087 USD
Retailer 8$1,135 USD
Retailer 12$1,135 USD
Retailer 14$1,265 USD
Retailer 13$1,270 USD
Retailer 2$1,287 USD
Retailer 11$1,340 USD
Retailer 4$1,429 USD
Retailer 7$1,508 USD
Retailer 9$1,675 USD
Retailer 10$2,083 USD
NZ Jewellers$2,769 USD

44 data points across 15 retailers

21 retailers$935 USD to $2,769 USD

A
Cheapest Retailer
-
$935 USD
A
Retailer 2
-
$1,028 USD
SGD 1,389 SGD
View
A
Retailer 3
-
$1,048 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,087 USD
View
B+
Retailer 5
-
$1,135 USD
View
B+
Retailer 6
-
$1,135 USD
View
Retailer 7
-
$1,154 USD
View
Price last confirmed 53 days ago
Retailer 8
-
$1,154 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
$1,179 USD
View
B+
Retailer 10
-
$1,265 USD
View
B+
Retailer 11
-
$1,270 USD
View
B+
Retailer 12
-
$1,287 USD
£1,014 GBP
View
Retailer 13
-
$1,331 USD
View
Price last confirmed 53 days ago
Retailer 14
-
$1,331 USD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$1,340 USD
£1,055 GBP
View
B
Retailer 16
-
$1,429 USD
View
Retailer 17
-
$1,508 USD
A$2,320 AUD
View
Price last confirmed 25 days ago
B
Retailer 18
-
$1,675 USD
ZAR 27,063 ZAR
View
B
Retailer 19
-
$2,083 USD
£1,640 GBP
View
B
Retailer 20
-
$2,769 USD
View
Most Expensive
NZ Jewellers
682f0d6b-1b18-40a0-9382-996856cd1e15 · Sep 26
$2,814 USD
View
Price last confirmed 33 days ago
20 more retailers have this diamond
Prices start from $935 USDSave up to $1,834 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
$935 USD