Round|Natural|GIA

1.11ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556369090

Certificate GIA 2556369090

Diamond specifications and retailer prices

From $2,762 USD
As of October 31, 2026
Save $2,243 USD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,258 USD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.11ct natural round diamond

This 1.11ct 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 2556369090. Listed at 14 retailers as of October 31, 2026, with a 81% 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

1.11
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2556369090
Dimensions6.60 × 6.64 × 4.12 mm
L/W Ratio1.01
Star length55%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.60 mm6.64 mm1.11 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556369090
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,376 USD|Low: $2,762 USD|High: $5,088 USD|Avg: $3,438 USD|+8.8%
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
November 1, 2026
Retailer 10$2,762 USD
Retailer 6$2,880 USD
Retailer 13$2,920 USD
Retailer 3$2,993 USD
Retailer 5$3,122 USD
Retailer 4$3,150 USD
Retailer 8$3,181 USD
Retailer 2$3,209 USD
Retailer 1$3,376 USD
Retailer 12$3,386 USD
Retailer 11$3,486 USD
Retailer 9$3,679 USD
Retailer 7$5,005 USD

23 data points across 13 retailers

14 retailers$2,762 USD to $5,005 USD

B+
Cheapest Retailer
-
$2,762 USD
Final sale: no returns
B+
Retailer 2
-
$2,880 USD
£2,268 GBP
View
B+
Retailer 3
-
$2,920 USD
View
Retailer 4
-
$2,993 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$3,150 USD
View
Price last confirmed 23 days ago
B+
Retailer 6
-
$3,181 USD
£2,505 GBP
View
Retailer 7
-
$3,209 USD
A$4,937 AUD
View
Price last confirmed 28 days ago
B+
Retailer 8
-
$3,376 USD
€3,215 EUR
View
B+
Retailer 9
-
$3,386 USD
View
Retailer 10
-
$3,454 USD
View
Price last confirmed 30 days ago
B+
Retailer 11
-
$3,486 USD
£2,745 GBP
View
B+
Retailer 12
-
$3,679 USD
ZAR 59,437 ZAR
View
B
Retailer 13
-
$5,005 USD
£3,941 GBP
View
Most Expensive
NZ Jewellers
a8988151-7674-4540-8775-672913e9829b · Oct 3
$6,258 USD
View
Price last confirmed 29 days ago
13 more retailers have this diamond
Prices start from $2,762 USDSave up to $2,243 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.

B+
1.11ct Round
$2,762 USD