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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6502517721

Certificate GIA 6502517721

Diamond specifications and retailer prices

From $3,029 SGD
$2,369 USD
As of October 30, 2026
Save $4,937 SGD (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,966 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502517721. Listed at 23 retailers as of October 30, 2026, with prices from $3,029 to $7,966, a $4,937 spread on the same certified stone. NZ Jewellers lists it at $7,966. 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6502517721
Dimensions6.37 × 6.32 × 3.93 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.37 mm6.32 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6502517721
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 30
Current: $7,966 SGD|Low: $2,920 SGD|High: $7,966 SGD|Avg: $4,722 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6$3,011 SGD
Retailer 7$3,186 SGD
Retailer 9$3,585 SGD
Retailer 2$4,050 SGD
Retailer 3$4,205 SGD
Retailer 8$4,269 SGD
Retailer 4$4,640 SGD
Retailer 5$6,381 SGD
NZ Jewellers$7,966 SGD

42 data points across 9 retailers

23 retailers$3,029 SGD to $7,966 SGD

Retailer 1
-
$3,011 SGD
$2,355 USD
Price last confirmed 13 days ago
A
Retailer 2
-
$3,029 SGD
$2,369 USD
View
B+
Retailer 3
-
$3,091 SGD
$2,418 USD
View
B+
Retailer 4
-
$3,186 SGD
$2,492 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,200 SGD
A$3,851 AUD
View
B+
Retailer 6
-
$3,401 SGD
$2,660 USD
View
B+
Retailer 7
-
$3,452 SGD
$2,700 USD
View
B+
Retailer 8
-
$3,452 SGD
$2,700 USD
View
B+
Retailer 9
-
$3,498 SGD
$2,736 USD
View
B+
Retailer 10
-
$3,585 SGD
$2,804 USD
View
B
Retailer 11
-
$3,914 SGD
$3,062 USD
View
B
Retailer 12
-
$3,937 SGD
$3,080 USD
View
B
Retailer 13
-
$3,937 SGD
$3,080 USD
View
B
Retailer 14
-
$3,983 SGD
$3,116 USD
View
B
Retailer 15
-
$4,050 SGD
£2,494 GBP
View
B
Retailer 16
-
$4,078 SGD
$3,190 USD
View
B+
Retailer 17
-
$4,205 SGD
€3,133 EUR
View
Retailer 18
-
$4,269 SGD
A$5,138 AUD
View
Price last confirmed 23 days ago
B+
Retailer 19
-
$4,314 SGD
$3,375 USD
View
Retailer 20
-
$4,423 SGD
$3,460 USD
View
Price last confirmed 8 days ago
B
Retailer 21
-
$4,640 SGD
ZAR 58,632 ZAR
View
B
Retailer 22
-
$6,381 SGD
£3,930 GBP
View
Most Expensive
B
NZ Jewellers
954e9cce-4327-4cdb-a9ff-6c9d33a1f055 · Oct 30
$7,966 SGD
$6,231 USD
View
22 more retailers have this diamond
Prices start from $3,029 SGDSave up to $4,937 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
1.00ct Round
$3,029 SGD