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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 $187 USD
As of October 27, 2026
Save $1,363 USD (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,550 USD 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 27, 2026, with prices from $187 to $1,550, a $1,363 spread on the same certified stone. Do Amore Diamonds lists it at $1,550. 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 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 27
Current: $1,550 USD|Low: $142 USD|High: $1,962 USD|Avg: $709 USD|+14.0%
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 20
October 29, 2026
Retailer 20$187 USD
Retailer 14$194 USD
Retailer 4$200 USD
Retailer 17$200 USD
Retailer 18$277 USD
Retailer 7$298 USD
Retailer 13$356 USD
Retailer 8$395 USD
Retailer 3$520 USD
Retailer 11$525 USD
Retailer 9$641 USD
Retailer 16$660 USD
Retailer 5$679 USD
Retailer 19$709 USD
Retailer 6$846 USD
Retailer 2$1,026 USD
Retailer 15$1,036 USD
Retailer 10$1,524 USD
Do Amore Diamonds$1,550 USD
Retailer 12$1,962 USD

12 data points across 20 retailers

16 retailers$187 USD to $1,550 USD

A
Cheapest Retailer
-
$187 USD
A
Retailer 2
-
$194 USD
View
A
Retailer 3
-
$200 USD
View
A
Retailer 4
-
$200 USD
View
A
Retailer 5
-
$277 USD
View
B+
Retailer 6
-
$298 USD
View
B+
Retailer 7
-
$356 USD
£280 GBP
View
B+
Retailer 8
-
$395 USD
View
B+
Retailer 9
-
$520 USD
View
B
Retailer 10
-
$660 USD
View
B
Retailer 11
-
$679 USD
View
B
Retailer 12
-
$709 USD
View
B
Retailer 13
-
$846 USD
View
B
Retailer 14
-
$1,026 USD
View
B
Retailer 15
-
$1,036 USD
£816 GBP
View
Most Expensive
B
Do Amore Diamonds
27-62661F2E0 · Oct 29
$1,550 USD
View
15 more retailers have this diamond
Prices start from $187 USDSave up to $1,363 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
$187 USD