Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552615902

Certificate GIA 6552615902

Diamond specifications and retailer prices

From $1,894 USD
HK$14,800 HKD
As of October 29, 2026
Save $1,177 USD (38%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $5,350 USD at NZ Jewellers · As of October 6, 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 6552615902. Listed at 24 retailers as of October 29, 2026, with a 62% 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

1.00
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552615902
Dimensions6.34 × 6.40 × 3.91 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.34 mm6.40 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552615902
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: $2,180 USD|Low: $1,842 USD|High: $4,538 USD|Avg: $2,686 USD|-8.9%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 14$1,894 USD
Retailer 7$1,908 USD
Retailer 2$2,056 USD
Retailer 16$2,101 USD
Retailer 1$2,180 USD
Retailer 18$2,310 USD
Retailer 4$2,395 USD
Retailer 15$2,431 USD
Retailer 8$2,600 USD
Retailer 17$2,620 USD
Retailer 19$2,620 USD
Retailer 3$2,710 USD
Retailer 12$2,768 USD
Retailer 11$2,867 USD
Retailer 5$2,933 USD
Retailer 6$2,952 USD
Retailer 13$3,071 USD
Retailer 10$3,108 USD
Retailer 9$4,449 USD

25 data points across 19 retailers

24 retailers$1,894 USD to $3,071 USD

A
Cheapest Retailer
-
$1,894 USD
HK$14,800 HKD
Retailer 2
-
$1,908 USD
₹181,736 INR
View
Price last confirmed 16 days ago
A
Retailer 3
-
$2,015 USD
View
A
Retailer 4
-
$2,056 USD
View
A
Retailer 5
-
$2,101 USD
View
Final sale: no returns
A
Retailer 6
-
$2,180 USD
View
A
Retailer 7
-
$2,310 USD
View
B+
Retailer 8
-
$2,395 USD
View
B+
Retailer 9
-
$2,431 USD
£1,914 GBP
View
B+
Retailer 10
-
$2,499 USD
View
Retailer 11
-
$2,512 USD
View
Price last confirmed 15 days ago
Retailer 12
-
$2,600 USD
SGD 3,513 SGD
View
Price last confirmed 15 days ago
Retailer 13
-
$2,606 USD
View
Price last confirmed 37 days ago
B+
Retailer 14
-
$2,620 USD
View
B+
Retailer 15
-
$2,620 USD
View
B+
Retailer 16
-
$2,710 USD
View
B+
Retailer 17
-
$2,768 USD
£2,180 GBP
View
Retailer 18
-
$2,867 USD
A$4,411 AUD
View
Price last confirmed 24 days ago
Retailer 19
-
$2,953 USD
View
Price last confirmed 32 days ago
B+
Retailer 20
-
$3,071 USD
View
Retailer 21
-
$3,108 USD
ZAR 50,202 ZAR
View
Price last confirmed 19 days ago
Retailer 22
-
$4,449 USD
£3,503 GBP
View
Price last confirmed 16 days ago
Retailer 23
-
$5,350 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
31f90981-d8e1-4b67-a371-643a28bf8e65 · Oct 6
$5,350 USD
View
Price last confirmed 25 days ago
23 more retailers have this diamond
Prices start from $1,894 USDSave up to $1,177 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
$1,894 USD