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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5506585990

Certificate GIA 5506585990

Diamond specifications and retailer prices

From $1,486 SGD
$1,162 USD
As of October 30, 2026
Save $2,847 SGD (66%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,332 SGD at NZ Jewellers · As of October 30, 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 5506585990. Listed at 20 retailers as of October 30, 2026, with prices from $1,486 to $4,332, a $2,847 spread on the same certified stone. NZ Jewellers lists it at $4,332. 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
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5506585990
Dimensions5.93 × 5.88 × 3.67 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.93 mm5.88 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5506585990
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,627 SGD|Low: $1,237 SGD|High: $3,293 SGD|Avg: $2,162 SGD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8$1,486 SGD
Retailer 11$1,544 SGD
Retailer 10$1,671 SGD
Retailer 7$1,758 SGD
Retailer 4$1,968 SGD
Retailer 3$2,013 SGD
Retailer 5$2,311 SGD
Retailer 9$2,318 SGD
Retailer 1$2,627 SGD
Retailer 2$2,899 SGD
Retailer 6$3,270 SGD

44 data points across 11 retailers

20 retailers$1,486 SGD to $4,332 SGD

B+
Cheapest Retailer
-
$1,486 SGD
$1,162 USD
Final sale: no returns
B+
Retailer 2
-
$1,523 SGD
$1,191 USD
View
B+
Retailer 3
-
$1,540 SGD
$1,205 USD
View
B+
Retailer 4
-
$1,544 SGD
$1,208 USD
View
B+
Retailer 5
-
$1,579 SGD
$1,235 USD
View
B+
Retailer 6
-
$1,610 SGD
$1,259 USD
View
B+
Retailer 7
-
$1,671 SGD
$1,307 USD
View
B
Retailer 8
-
$1,758 SGD
$1,375 USD
View
B
Retailer 9
-
$1,856 SGD
$1,452 USD
View
B+
Retailer 10
-
$1,918 SGD
$1,500 USD
View
B+
Retailer 11
-
$1,918 SGD
$1,500 USD
View
B+
Retailer 12
-
$1,968 SGD
£1,212 GBP
View
B
Retailer 13
-
$1,982 SGD
$1,550 USD
View
B
Retailer 14
-
$2,013 SGD
$1,575 USD
View
B
Retailer 15
-
$2,311 SGD
€1,722 EUR
View
Retailer 16
-
$2,318 SGD
A$2,789 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
$2,627 SGD
ZAR 33,196 ZAR
View
B
Retailer 18
-
$2,899 SGD
CA$3,150 CAD
View
B
Retailer 19
-
$3,270 SGD
£2,014 GBP
View
Most Expensive
B
NZ Jewellers
abd4e079-4c0d-4db3-8fbc-485f90a6eab7 · Oct 30
$4,332 SGD
$3,389 USD
View
19 more retailers have this diamond
Prices start from $1,486 SGDSave up to $2,847 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.

B+
0.80ct Round
$1,486 SGD