Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6522850805

Certificate GIA 6522850805

Diamond specifications and retailer prices

From $6,913 NZD
$3,896 USD
As of October 30, 2026
Save $6,776 NZD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,756 NZD at NZ Jewellers · As of September 28, 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 6522850805. Listed at 19 retailers as of October 30, 2026, with a 98% 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6522850805
Dimensions6.60 × 6.56 × 4.05 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.60 mm6.56 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522850805
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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 30
Current: $7,988 NZD|Low: $6,680 NZD|High: $12,727 NZD|Avg: $8,236 NZD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 10$6,913 NZD
Retailer 3$7,061 NZD
Retailer 5$7,115 NZD
Retailer 2$7,252 NZD
Retailer 12$7,443 NZD
Retailer 9$7,857 NZD
Retailer 1$7,988 NZD
Retailer 11$8,122 NZD
Retailer 13$8,147 NZD
Retailer 4$8,422 NZD
Retailer 8$8,856 NZD
Retailer 7$9,568 NZD
Retailer 6$12,583 NZD

43 data points across 13 retailers

19 retailers$6,913 NZD to $13,689 NZD

B+
Cheapest Retailer
-
$6,913 NZD
$3,896 USD
B+
Retailer 2
-
$7,061 NZD
SGD 5,378 SGD
View
Retailer 3
-
$7,115 NZD
$4,010 USD
View
Price last confirmed 23 days ago
B+
Retailer 4
-
$7,252 NZD
$4,087 USD
View
Final sale: no returns
B+
Retailer 5
-
$7,443 NZD
$4,195 USD
View
B+
Retailer 6
-
$7,857 NZD
$4,428 USD
View
B+
Retailer 7
-
$7,857 NZD
$4,428 USD
View
B+
Retailer 8
-
$7,857 NZD
$4,428 USD
View
Retailer 9
-
$7,896 NZD
$4,450 USD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
$7,988 NZD
£3,545 GBP
View
B+
Retailer 11
-
$8,122 NZD
$4,578 USD
View
B+
Retailer 12
-
$8,147 NZD
$4,592 USD
View
Retailer 13
-
$8,422 NZD
A$7,303 AUD
View
Price last confirmed 21 days ago
B+
Retailer 14
-
$8,856 NZD
£3,930 GBP
View
Retailer 15
-
$9,111 NZD
$5,135 USD
View
Price last confirmed 31 days ago
B
Retailer 16
-
$9,568 NZD
ZAR 87,118 ZAR
View
B
Retailer 17
-
$12,583 NZD
£5,584 GBP
View
B
Retailer 18
-
$13,689 NZD
$7,715 USD
View
Most Expensive
NZ Jewellers
6b55c98d-cb82-4104-94c6-1c51bc4e06db · Sep 28
$13,756 NZD
$7,753 USD
View
Price last confirmed 32 days ago
18 more retailers have this diamond
Prices start from $6,913 NZDSave up to $6,776 NZD

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+
1.09ct Round
$6,913 NZD