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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2506352705

Certificate GIA 2506352705

Diamond specifications and retailer prices

From $1,195 SGD
$935 USD
As of October 28, 2026
Save $2,345 SGD (66%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,597 SGD 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $3,540 SGD|Low: $1,195 SGD|High: $3,597 SGD|Avg: $1,761 SGD|-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 31, 2026
Retailer 15$1,195 SGD
Retailer 6$1,314 SGD
Retailer 5$1,340 SGD
Retailer 3$1,390 SGD
Retailer 9$1,451 SGD
Retailer 12$1,451 SGD
Retailer 14$1,617 SGD
Retailer 13$1,623 SGD
Retailer 8$1,646 SGD
Retailer 11$1,713 SGD
Retailer 4$1,827 SGD
Retailer 7$1,928 SGD
Retailer 2$2,147 SGD
Retailer 10$2,663 SGD
NZ Jewellers$3,540 SGD

44 data points across 15 retailers

21 retailers$1,195 SGD to $3,540 SGD

A
Cheapest Retailer
-
$1,195 SGD
$935 USD
A
Retailer 2
-
$1,314 SGD
View
A
Retailer 3
-
$1,340 SGD
$1,048 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,390 SGD
$1,087 USD
View
B+
Retailer 5
-
$1,451 SGD
$1,135 USD
View
B+
Retailer 6
-
$1,451 SGD
$1,135 USD
View
Retailer 7
-
$1,475 SGD
$1,154 USD
View
Price last confirmed 54 days ago
Retailer 8
-
$1,475 SGD
$1,154 USD
View
Price last confirmed 32 days ago
B+
Retailer 9
-
$1,507 SGD
$1,179 USD
View
B+
Retailer 10
-
$1,617 SGD
$1,265 USD
View
B+
Retailer 11
-
$1,623 SGD
$1,270 USD
View
B+
Retailer 12
-
$1,646 SGD
£1,014 GBP
View
Retailer 13
-
$1,702 SGD
$1,331 USD
View
Price last confirmed 54 days ago
Retailer 14
-
$1,702 SGD
$1,331 USD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
$1,713 SGD
£1,055 GBP
View
B
Retailer 16
-
$1,827 SGD
$1,429 USD
View
Retailer 17
-
$1,928 SGD
A$2,320 AUD
View
Price last confirmed 26 days ago
B
Retailer 18
-
$2,147 SGD
ZAR 27,129 ZAR
View
B
Retailer 19
-
$2,663 SGD
£1,640 GBP
View
B
Retailer 20
-
$3,540 SGD
$2,769 USD
View
Most Expensive
NZ Jewellers
682f0d6b-1b18-40a0-9382-996856cd1e15 · Sep 26
$3,597 SGD
$2,814 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from $1,195 SGDSave up to $2,345 SGD

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
$1,195 SGD