Round|Natural|GIA

1.09ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7568270827

Certificate GIA 7568270827

Diamond specifications and retailer prices

From $2,286 USD
As of October 30, 2026
Save $2,155 USD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,292 USD at NZ Jewellers · As of October 20, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7568270827. Listed at 15 retailers as of October 26, 2026, with a 94% 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

1.09
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7568270827
Dimensions6.58 × 6.54 × 4.10 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
6.58 mm6.54 mm1.09 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7568270827
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,292 USD|Low: $2,185 USD|High: $5,399 USD|Avg: $3,029 USD|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 4$2,286 USD
Retailer 5$2,336 USD
Retailer 2$2,436 USD
Retailer 10$2,510 USD
Retailer 13$2,531 USD
Retailer 7$2,667 USD
Retailer 6$2,893 USD
Retailer 3$2,916 USD
Retailer 14$2,921 USD
Retailer 12$2,965 USD
Retailer 8$3,111 USD
Retailer 9$3,162 USD
Retailer 11$4,441 USD
NZ Jewellers$5,292 USD

34 data points across 14 retailers

15 retailers$2,286 USD to $4,441 USD

A
Cheapest Retailer
-
$2,286 USD
A
Retailer 2
-
$2,336 USD
View
Final sale: no returns
A
Retailer 3
-
$2,436 USD
£1,918 GBP
View
A
Retailer 4
-
$2,510 USD
View
Retailer 5
-
$2,531 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$2,667 USD
£2,100 GBP
View
Retailer 7
-
$2,702 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$2,893 USD
A$4,451 AUD
View
Price last confirmed 24 days ago
B+
Retailer 9
-
$2,916 USD
View
Retailer 10
-
$2,921 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$2,965 USD
£2,335 GBP
View
B+
Retailer 12
-
$3,111 USD
ZAR 50,264 ZAR
View
B+
Retailer 13
-
$3,162 USD
€3,011 EUR
View
B
Retailer 14
-
$4,441 USD
£3,497 GBP
View
Most Expensive
NZ Jewellers
e3040313-5717-4a56-b896-8acacf2e3999 · Oct 20
$5,292 USD
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from $2,286 USDSave up to $2,155 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
$2,286 USD