Round|Natural|GIA

1.10ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6421089833

Certificate GIA 6421089833

Diamond specifications and retailer prices

From $5,161 USD
£4,064 GBP
As of October 31, 2026
Save $5,739 USD (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $10,899 USD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.1ct natural round diamond

This 1.1ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6421089833. Listed at 7 retailers as of October 31, 2026, with prices from $5,161 to $10,899, a $5,739 spread on the same certified stone. Diamond Quarter lists it at $10,899. 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

1.10
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6421089833
Dimensions6.62 × 6.60 × 4.09 mm
L/W Ratio1.00
Top View
6.62 mm6.60 mm1.10 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6421089833
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.9%

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: $5,161 USD|Low: $4,314 USD|High: $8,654 USD|Avg: $5,670 USD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 7$4,314 USD
Retailer 4$4,350 USD
Retailer 1$5,161 USD
Retailer 5$5,412 USD
Retailer 6$5,925 USD
Retailer 2$6,076 USD
Retailer 3$8,562 USD

39 data points across 7 retailers

7 retailers$5,161 USD to $10,899 USD

Retailer 1
-
$4,350 USD
Price last confirmed 10 days ago
B+
Retailer 2
-
$5,161 USD
£4,064 GBP
View
Retailer 3
-
$5,412 USD
A$8,326 AUD
View
Price last confirmed 22 days ago
Retailer 4
-
$5,925 USD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$6,076 USD
€5,787 EUR
View
B
Retailer 6
-
$8,562 USD
£6,742 GBP
View
Most Expensive
B
Diamond Quarter
1.1SI1E6433945DN · Oct 31
$10,899 USD
£8,582 GBP
View
6 more retailers have this diamond
Prices start from $5,161 USDSave up to $5,739 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+
1.10ct Round
$5,161 USD