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Round|Lab Grown|IGI

1.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG689560510

Shape and cutting style on the report: Round brilliant

Certificate IGI LG689560510

Diamond specifications and retailer prices

From €137 EUR
$153 USD
As of October 29, 2026
Save €796 EUR (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €933 EUR at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG689560510 or 689560510. Listed at 19 retailers as of October 29, 2026, with prices from €137 to €933, a €796 spread on the same certified stone. Reve Diamonds lists it at €933. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689560510
Dimensions6.60 × 6.65 × 4.06 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.60 mm6.65 mm1.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689560510
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: €330 EUR|Low: €107 EUR|High: €933 EUR|Avg: €425 EUR|+9.7%
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
Retailer 14
Reve Diamonds
October 31, 2026
Retailer 4€137 EUR
Retailer 2€153 EUR
Retailer 11€169 EUR
Retailer 13€169 EUR
Retailer 9€282 EUR
Retailer 7€295 EUR
Retailer 12€310 EUR
Retailer 1€330 EUR
Retailer 10€390 EUR
Retailer 14€461 EUR
Retailer 5€545 EUR
Retailer 3€594 EUR
Retailer 6€761 EUR
Retailer 8€793 EUR
Reve Diamonds€933 EUR

44 data points across 15 retailers

19 retailers€137 EUR to €933 EUR

Retailer 1
-
€135 EUR
$151 USD
Price last confirmed 39 days ago
A
Retailer 2
-
€137 EUR
$153 USD
View
A
Retailer 3
-
€153 EUR
$171 USD
View
Final sale: no returns
Retailer 4
-
€158 EUR
$176 USD
View
Price last confirmed 39 days ago
Retailer 5
-
€166 EUR
$185 USD
View
Price last confirmed 39 days ago
A
Retailer 6
-
€169 EUR
$189 USD
View
A
Retailer 7
-
€169 EUR
$189 USD
View
A
Retailer 8
-
€282 EUR
$315 USD
View
A
Retailer 9
-
€295 EUR
£259 GBP
View
B+
Retailer 10
-
€310 EUR
$346 USD
View
B+
Retailer 11
-
€330 EUR
View
B+
Retailer 12
-
€390 EUR
$436 USD
View
B+
Retailer 13
-
€461 EUR
$515 USD
View
Retailer 14
-
€541 EUR
$604 USD
View
Price last confirmed 40 days ago
B
Retailer 15
-
€545 EUR
$609 USD
View
B
Retailer 16
-
€594 EUR
$664 USD
View
B
Retailer 17
-
€761 EUR
$850 USD
View
B
Retailer 18
-
€793 EUR
£698 GBP
View
Most Expensive
B
Reve Diamonds
772886DFC · Oct 30
€933 EUR
$1,043 USD
View
18 more retailers have this diamond
Prices start from €137 EURSave up to €796 EUR

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
€137 EUR