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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6405725798

Certificate GIA 6405725798

Diamond specifications and retailer prices

From $1,230 SGD
₹91,658 INR
As of October 31, 2026
Save $2,802 SGD (69%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,032 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 6405725798. Listed at 21 retailers as of October 30, 2026, with prices from $1,230 to $4,032, a $2,802 spread on the same certified stone. NZ Jewellers lists it at $4,032. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6405725798
Dimensions5.94 × 5.91 × 3.71 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.94 mm5.91 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6405725798
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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: $1,230 SGD|Low: $1,227 SGD|High: $4,472 SGD|Avg: $1,945 SGD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 1$1,230 SGD
Retailer 5$1,475 SGD
Retailer 2$1,525 SGD
Retailer 12$1,532 SGD
Retailer 13$1,547 SGD
Retailer 4$1,653 SGD
Retailer 10$1,803 SGD
Retailer 6$1,878 SGD
Retailer 11$1,965 SGD
Retailer 8$2,146 SGD
Retailer 3$2,162 SGD
Retailer 7$2,445 SGD
Retailer 9$3,044 SGD

33 data points across 13 retailers

21 retailers$1,230 SGD to $4,032 SGD

A
Cheapest Retailer
-
$1,230 SGD
₹91,658 INR
Retailer 2
-
$1,276 SGD
HK$7,800 HKD
View
Price last confirmed 57 days ago
B+
Retailer 3
-
$1,475 SGD
$1,154 USD
View
B+
Retailer 4
-
$1,525 SGD
$1,193 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,532 SGD
$1,198 USD
View
B+
Retailer 6
-
$1,547 SGD
$1,210 USD
View
Retailer 7
-
$1,653 SGD
$1,293 USD
View
Price last confirmed 38 days ago
Retailer 8
-
$1,653 SGD
$1,293 USD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
$1,653 SGD
$1,293 USD
View
B+
Retailer 10
-
$1,803 SGD
$1,410 USD
View
B
Retailer 11
-
$1,826 SGD
$1,428 USD
View
B
Retailer 12
-
$1,878 SGD
£1,156 GBP
View
B+
Retailer 13
-
$1,907 SGD
$1,492 USD
View
Retailer 14
-
$1,907 SGD
$1,492 USD
View
Price last confirmed 39 days ago
B
Retailer 15
-
$1,965 SGD
£1,210 GBP
View
B
Retailer 16
-
$2,146 SGD
€1,599 EUR
View
Retailer 17
-
$2,162 SGD
A$2,601 AUD
View
Price last confirmed 27 days ago
B
Retailer 18
-
$2,445 SGD
ZAR 30,900 ZAR
View
B
Retailer 19
-
$3,044 SGD
£1,875 GBP
View
Retailer 20
-
$4,032 SGD
$3,154 USD
View
Price last confirmed 40 days ago
Most Expensive
B
NZ Jewellers
1e096078-c2b6-44c9-9d1f-7ea2608ddbbb · Oct 30
$4,032 SGD
$3,154 USD
View
20 more retailers have this diamond
Prices start from $1,230 SGDSave up to $2,802 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
$1,230 SGD