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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 2566053993

Certificate GIA 2566053993

Diamond specifications and retailer prices

From $1,536 USD
HK$12,000 HKD
As of October 30, 2026
Save $2,770 USD (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,306 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 very-good cut grade and certified by GIA 2566053993. Listed at 22 retailers as of October 30, 2026, with prices from $1,536 to $4,306, a $2,770 spread on the same certified stone. NZ Jewellers lists it at $4,306. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566053993
Dimensions6.17 × 6.24 × 4.01 mm
L/W Ratio1.01
Top View
6.17 mm6.24 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566053993
Side View
Table 59.0%Crown 37.5°Girdle: THN-THKPavilion 40.8°Culet: NoneDepth 64.7%

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: $4,306 USD|Low: $1,536 USD|High: $4,475 USD|Avg: $2,359 USD|-3.8%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 7$1,536 USD
Retailer 2$1,576 USD
Retailer 19$1,835 USD
Retailer 8$1,861 USD
Retailer 16$1,988 USD
Retailer 9$2,029 USD
Retailer 3$2,060 USD
Retailer 6$2,060 USD
Retailer 20$2,090 USD
Retailer 14$2,155 USD
Retailer 12$2,158 USD
Retailer 4$2,198 USD
Retailer 17$2,246 USD
Retailer 5$2,260 USD
Retailer 11$2,376 USD
Retailer 21$2,508 USD
Retailer 15$2,814 USD
Retailer 13$2,820 USD
Retailer 10$3,001 USD
Retailer 18$3,627 USD
NZ Jewellers$4,306 USD

16 data points across 21 retailers

22 retailers$1,536 USD to $4,306 USD

A
Cheapest Retailer
-
$1,536 USD
HK$12,000 HKD
A
Retailer 2
-
$1,576 USD
₹150,118 INR
View
A
Retailer 3
-
$1,861 USD
View
Retailer 4
-
$1,970 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$1,988 USD
£1,565 GBP
View
A
Retailer 6
-
$2,029 USD
View
A
Retailer 7
-
$2,060 USD
View
A
Retailer 8
-
$2,060 USD
View
B+
Retailer 9
-
$2,090 USD
View
A
Retailer 10
-
$2,155 USD
View
A
Retailer 11
-
$2,158 USD
SGD 2,916 SGD
View
A
Retailer 12
-
$2,198 USD
View
B+
Retailer 13
-
$2,246 USD
£1,769 GBP
View
A
Retailer 14
-
$2,260 USD
View
B+
Retailer 15
-
$2,376 USD
View
B+
Retailer 16
-
$2,508 USD
ZAR 40,514 ZAR
View
Retailer 17
-
$2,689 USD
A$4,137 AUD
View
Price last confirmed 24 days ago
B
Retailer 18
-
$2,814 USD
€2,680 EUR
View
B
Retailer 19
-
$2,820 USD
View
B
Retailer 20
-
$3,001 USD
View
B
Retailer 21
-
$3,627 USD
£2,856 GBP
View
Most Expensive
B
NZ Jewellers
d7dd0661-fee1-4ae8-a928-035d6a473d34 · Oct 30
$4,306 USD
View
21 more retailers have this diamond
Prices start from $1,536 USDSave up to $2,770 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
$1,536 USD