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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 $2,369 USD
As of October 29, 2026
Save $3,862 USD (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,231 USD 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 29, 2026, with prices from $2,369 to $6,231, a $3,862 spread on the same certified stone. NZ Jewellers lists it at $6,231. 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
Color
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 29
Current: $3,168 USD|Low: $2,284 USD|High: $5,044 USD|Avg: $3,255 USD|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5$2,355 USD
Retailer 6$2,492 USD
Retailer 1$3,168 USD
Retailer 2$3,290 USD
Retailer 7$3,339 USD
Retailer 3$3,629 USD
Retailer 4$4,991 USD

43 data points across 7 retailers

23 retailers$2,369 USD to $6,231 USD

Retailer 1
-
$2,355 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$2,369 USD
View
B+
Retailer 3
-
$2,418 USD
View
B+
Retailer 4
-
$2,492 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,503 USD
A$3,851 AUD
View
B+
Retailer 6
-
$2,660 USD
View
B+
Retailer 7
-
$2,700 USD
View
B+
Retailer 8
-
$2,700 USD
View
B+
Retailer 9
-
$2,736 USD
View
B+
Retailer 10
-
$2,804 USD
View
B
Retailer 11
-
$3,062 USD
View
B
Retailer 12
-
$3,080 USD
View
B
Retailer 13
-
$3,080 USD
View
B
Retailer 14
-
$3,116 USD
View
B
Retailer 15
-
$3,168 USD
£2,494 GBP
View
B
Retailer 16
-
$3,190 USD
View
B+
Retailer 17
-
$3,290 USD
€3,133 EUR
View
Retailer 18
-
$3,339 USD
A$5,138 AUD
View
Price last confirmed 22 days ago
B+
Retailer 19
-
$3,375 USD
View
Retailer 20
-
$3,460 USD
View
Price last confirmed 7 days ago
B
Retailer 21
-
$3,629 USD
ZAR 58,632 ZAR
View
B
Retailer 22
-
$4,991 USD
£3,930 GBP
View
Most Expensive
B
NZ Jewellers
954e9cce-4327-4cdb-a9ff-6c9d33a1f055 · Oct 30
$6,231 USD
View
22 more retailers have this diamond
Prices start from $2,369 USDSave up to $3,862 USD

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
$2,369 USD