Round|Natural|GIA

1.23ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6555589674

Certificate GIA 6555589674

Diamond specifications and retailer prices

From $5,028 USD
As of November 4, 2026
Save $3,956 USD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,984 USD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.23ct natural round diamond

This 1.23ct 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 6555589674. Listed at 13 retailers as of November 4, 2026, with prices from $5,028 to $8,984, a $3,956 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,984. 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

1.23
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555589674
Dimensions6.82 × 6.86 × 4.28 mm
L/W Ratio1.01
Girdle conditionMedium
Key to symbols
Crystal, Twinning Wisp
Top View
6.82 mm6.86 mm1.23 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555589674
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.5%

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: Nov 4
Current: $7,764 USD|Low: $5,028 USD|High: $8,984 USD|Avg: $6,389 USD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 5, 2026
Retailer 2$5,028 USD
Retailer 12$5,385 USD
Retailer 4$5,770 USD
Retailer 6$6,004 USD
Retailer 10$6,024 USD
Retailer 8$6,102 USD
Retailer 5$6,340 USD
Retailer 3$6,430 USD
Retailer 7$6,430 USD
Retailer 11$6,519 USD
Retailer 9$6,650 USD
Retailer 1$7,764 USD
Wholesale Diamonds Direct$8,984 USD

43 data points across 13 retailers

13 retailers$5,028 USD to $8,984 USD

B+
Cheapest Retailer
-
$5,028 USD
B+
Retailer 2
-
$5,385 USD
View
B+
Retailer 3
-
$5,770 USD
View
B+
Retailer 4
-
$6,004 USD
View
B
Retailer 5
-
$6,024 USD
View
B
Retailer 6
-
$6,102 USD
View
B
Retailer 7
-
$6,340 USD
View
B
Retailer 8
-
$6,430 USD
View
B
Retailer 9
-
$6,430 USD
View
B
Retailer 10
-
$6,519 USD
View
B
Retailer 11
-
$6,650 USD
View
B
Retailer 12
-
$7,764 USD
View
Most Expensive
B
Wholesale Diamonds Direct
273575981 · Nov 4
$8,984 USD
View
12 more retailers have this diamond
Prices start from $5,028 USDSave up to $3,956 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+
1.23ct Round
$5,028 USD