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Round|Lab Grown|IGI

1.31ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG761528295

Shape and cutting style on the report: Round brilliant

Certificate IGI LG761528295

Diamond specifications and retailer prices

From €177 EUR
$198 USD
As of October 29, 2026
Save €881 EUR (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,058 EUR at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.31ct lab-grown round diamond

This 1.31ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG761528295 or 761528295. Listed at 22 retailers as of October 29, 2026, with prices from €177 to €1,058, a €881 spread on the same certified stone. Reve Diamonds lists it at €1,058. 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

1.31
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761528295
Dimensions6.98 × 6.95 × 4.35 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.98 mm6.95 mm1.31 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761528295
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.4%

Caratlytics Score

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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 29
Current: €399 EUR|Low: €168 EUR|High: €1,058 EUR|Avg: €459 EUR|+7.6%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
October 31, 2026
Retailer 8€177 EUR
Retailer 2€197 EUR
Retailer 15€204 EUR
Retailer 3€218 EUR
Retailer 4€218 EUR
Retailer 5€380 EUR
Retailer 14€381 EUR
Retailer 12€385 EUR
Retailer 16€387 EUR
Retailer 1€399 EUR
Retailer 18€440 EUR
Retailer 17€446 EUR
Retailer 11€480 EUR
Retailer 10€588 EUR
Retailer 6€590 EUR
Retailer 9€703 EUR
Retailer 7€751 EUR
Retailer 13€1,028 EUR
Reve Diamonds€1,058 EUR

41 data points across 19 retailers

22 retailers€177 EUR to €1,058 EUR

Retailer 1
-
€175 EUR
$196 USD
Price last confirmed 42 days ago
A
Retailer 2
-
€177 EUR
$198 USD
View
A
Retailer 3
-
€197 EUR
$221 USD
View
Final sale: no returns
A
Retailer 4
-
€204 EUR
$229 USD
View
Retailer 5
-
€214 EUR
$240 USD
View
Price last confirmed 42 days ago
A
Retailer 6
-
€218 EUR
$245 USD
View
A
Retailer 7
-
€218 EUR
$245 USD
View
A
Retailer 8
-
€380 EUR
$426 USD
View
A
Retailer 9
-
€381 EUR
View
A
Retailer 10
-
€385 EUR
£340 GBP
View
A
Retailer 11
-
€387 EUR
$434 USD
View
A
Retailer 12
-
€399 EUR
£353 GBP
View
B+
Retailer 13
-
€440 EUR
$494 USD
View
B+
Retailer 14
-
€446 EUR
$500 USD
View
B+
Retailer 15
-
€480 EUR
A$828 AUD
View
B+
Retailer 16
-
€588 EUR
$660 USD
View
B
Retailer 17
-
€590 EUR
$662 USD
View
Retailer 18
-
€697 EUR
$782 USD
View
Price last confirmed 43 days ago
B+
Retailer 19
-
€703 EUR
$788 USD
View
B
Retailer 20
-
€751 EUR
$842 USD
View
B
Retailer 21
-
€1,028 EUR
£908 GBP
View
Most Expensive
B
Reve Diamonds
EAB8DE9AA · Oct 30
€1,058 EUR
$1,187 USD
View
21 more retailers have this diamond
Prices start from €177 EURSave up to €881 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
1.31ct Round
€177 EUR