Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1553302112

Certificate GIA 1553302112

Diamond specifications and retailer prices

From $2,929 USD
A$4,506 AUD
As of October 28, 2026
Save $3,124 USD (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,053 USD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct 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 1553302112. Listed at 6 retailers as of October 27, 2026, with prices from $2,929 to $6,053, a $3,124 spread on the same certified stone. NZ Jewellers lists it at $6,053. 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

1.09
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1553302112
Dimensions6.51 × 6.55 × 4.11 mm
L/W Ratio1.01
Star length50%
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
6.51 mm6.55 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553302112
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.9%

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 28
Current: $5,842 USD|Low: $2,672 USD|High: $5,880 USD|Avg: $3,974 USD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 3$3,207 USD
Retailer 4$3,384 USD
Retailer 2$3,861 USD
Retailer 1$5,842 USD

23 data points across 4 retailers

6 retailers$2,929 USD to $6,053 USD

A
Cheapest Retailer
-
$2,929 USD
A$4,506 AUD
A
Retailer 2
-
$3,207 USD
View
Final sale: no returns
A
Retailer 3
-
$3,384 USD
£2,664 GBP
View
Price last confirmed 29 days ago
B+
Retailer 4
-
$3,861 USD
€3,677 EUR
View
B
Retailer 5
-
$5,842 USD
£4,600 GBP
View
Most Expensive
B
NZ Jewellers
bf3de57b-d7c5-42ed-b71a-9e4580671573 · Oct 27
$6,053 USD
View
5 more retailers have this diamond
Prices start from $2,929 USDSave up to $3,124 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
1.09ct Round
$2,929 USD