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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6203521683

Certificate GIA 6203521683

Diamond specifications and retailer prices

From $949 SGD
HK$5,800 HKD
As of October 31, 2026
Save $1,382 SGD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,042 SGD 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6203521683. Listed at 17 retailers as of October 29, 2026, with a 146% 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6203521683
Dimensions5.87 × 5.92 × 3.69 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
5.87 mm5.92 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6203521683
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.7%

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 31
Current: $4,042 SGD|Low: $933 SGD|High: $4,042 SGD|Avg: $1,614 SGD
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
October 31, 2026
Retailer 9$949 SGD
Retailer 2$950 SGD
Retailer 5$1,038 SGD
Retailer 14$1,167 SGD
Retailer 6$1,289 SGD
Retailer 4$1,310 SGD
Retailer 3$1,372 SGD
Retailer 16$1,457 SGD
Retailer 10$1,476 SGD
Retailer 7$1,488 SGD
Retailer 15$1,579 SGD
Retailer 12$1,644 SGD
Retailer 8$1,686 SGD
Retailer 11$1,873 SGD
Retailer 13$2,331 SGD
NZ Jewellers$4,042 SGD

31 data points across 16 retailers

17 retailers$949 SGD to $2,331 SGD

A
Cheapest Retailer
-
$949 SGD
HK$5,800 HKD
A
Retailer 2
-
$950 SGD
₹70,762 INR
View
A
Retailer 3
-
$1,038 SGD
$812 USD
View
A
Retailer 4
-
$1,167 SGD
$913 USD
View
Final sale: no returns
Retailer 5
-
$1,289 SGD
$1,008 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$1,310 SGD
View
Retailer 7
-
$1,338 SGD
$1,047 USD
View
Price last confirmed 16 days ago
B+
Retailer 8
-
$1,372 SGD
$1,073 USD
View
B+
Retailer 9
-
$1,457 SGD
$1,140 USD
View
B+
Retailer 10
-
$1,476 SGD
£909 GBP
View
Retailer 11
-
$1,488 SGD
$1,164 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$1,579 SGD
$1,235 USD
View
B+
Retailer 13
-
$1,644 SGD
€1,225 EUR
View
Retailer 14
-
$1,686 SGD
A$2,029 AUD
View
Price last confirmed 27 days ago
B+
Retailer 15
-
$1,873 SGD
ZAR 23,663 ZAR
View
B
Retailer 16
-
$2,331 SGD
£1,436 GBP
View
Most Expensive
NZ Jewellers
ce6df165-cb18-4743-893b-a0eae58deb8d · Oct 20
$4,042 SGD
$3,162 USD
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from $949 SGDSave up to $1,382 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
$949 SGD