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Round|Lab Grown|GIA

1.09ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 7501197437

Certificate GIA 7501197437

Diamond specifications and retailer prices

From $344 NZD
$194 USD
As of October 29, 2026
Save $2,406 NZD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,750 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown 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 7501197437. Listed at 16 retailers as of October 29, 2026, with prices from $344 to $2,750, a $2,406 spread on the same certified stone. Do Amore Diamonds lists it at $2,750. 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 angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 7501197437
Dimensions6.64 × 6.62 × 4.07 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Growth Remnant
Top View
6.64 mm6.62 mm1.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7501197437
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.3%

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 29
Current: $2,750 NZD|Low: $252 NZD|High: $3,481 NZD|Avg: $1,257 NZD|+14.0%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 7
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Retailer 11
Retailer 12
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Retailer 15
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Retailer 17
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Retailer 20
October 31, 2026
Retailer 19$344 NZD
Retailer 4$355 NZD
Retailer 5$355 NZD
Retailer 16$399 NZD
Retailer 15$506 NZD
Retailer 7$529 NZD
Retailer 8$701 NZD
Retailer 17$785 NZD
Retailer 11$931 NZD
Retailer 14$987 NZD
Retailer 9$1,136 NZD
Retailer 3$1,171 NZD
Retailer 13$1,377 NZD
Retailer 6$1,501 NZD
Retailer 2$1,513 NZD
Retailer 18$1,820 NZD
Retailer 20$1,839 NZD
Retailer 10$2,703 NZD
Do Amore Diamonds$2,750 NZD
Retailer 12$3,481 NZD

14 data points across 20 retailers

16 retailers$344 NZD to $2,750 NZD

A
Cheapest Retailer
-
$344 NZD
$194 USD
A
Retailer 2
-
$355 NZD
$200 USD
View
A
Retailer 3
-
$355 NZD
$200 USD
View
A
Retailer 4
-
$399 NZD
$225 USD
View
A
Retailer 5
-
$506 NZD
$285 USD
View
B+
Retailer 6
-
$529 NZD
$298 USD
View
B+
Retailer 7
-
$701 NZD
$395 USD
View
B+
Retailer 8
-
$785 NZD
£349 GBP
View
B+
Retailer 9
-
$987 NZD
$556 USD
View
B
Retailer 10
-
$1,171 NZD
$660 USD
View
B
Retailer 11
-
$1,377 NZD
$776 USD
View
B
Retailer 12
-
$1,501 NZD
$846 USD
View
B
Retailer 13
-
$1,513 NZD
$853 USD
View
B
Retailer 14
-
$1,820 NZD
$1,026 USD
View
B
Retailer 15
-
$1,839 NZD
£816 GBP
View
Most Expensive
B
Do Amore Diamonds
27-62661F2E0 · Oct 29
$2,750 NZD
$1,550 USD
View
15 more retailers have this diamond
Prices start from $344 NZDSave up to $2,406 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.

A
1.09ct Round
$344 NZD