CaratHunter
Plans
Round|Natural|GIA

1.23ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6555589674

Certificate GIA 6555589674

Diamond specifications and retailer prices

From $6,422 SGD
As of November 4, 2026
Save $5,053 SGD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,475 SGD 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 $6,422 to $11,475, a $5,053 spread on the same certified stone. Wholesale Diamonds Direct lists it at $11,475. 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
Colour
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: $9,917 SGD|Low: $6,422 SGD|High: $11,475 SGD|Avg: $8,160 SGD|+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$6,422 SGD
Retailer 12$6,878 SGD
Retailer 4$7,370 SGD
Retailer 6$7,669 SGD
Retailer 10$7,694 SGD
Retailer 8$7,794 SGD
Retailer 5$8,098 SGD
Retailer 3$8,213 SGD
Retailer 7$8,213 SGD
Retailer 11$8,327 SGD
Retailer 9$8,494 SGD
Retailer 1$9,917 SGD
Wholesale Diamonds Direct$11,475 SGD

43 data points across 13 retailers

13 retailers$6,422 SGD to $11,475 SGD

B+
Cheapest Retailer
-
$6,422 SGD
B+
Retailer 2
-
$6,878 SGD
View
B+
Retailer 3
-
$7,370 SGD
View
B+
Retailer 4
-
$7,669 SGD
View
B
Retailer 5
-
$7,694 SGD
View
B
Retailer 6
-
$7,794 SGD
View
B
Retailer 7
-
$8,098 SGD
View
B
Retailer 8
-
$8,213 SGD
View
B
Retailer 9
-
$8,213 SGD
View
B
Retailer 10
-
$8,327 SGD
View
B
Retailer 11
-
$8,494 SGD
View
B
Retailer 12
-
$9,917 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
273575981 · Nov 4
$11,475 SGD
$8,984 USD
View
12 more retailers have this diamond
Prices start from $6,422 SGDSave up to $5,053 SGD

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
$6,422 SGD