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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 $198 USD
As of November 5, 2026
Save $989 USD (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,187 USD at Reve Diamonds · As of November 6, 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 23 retailers as of November 5, 2026, with prices from $198 to $1,187, a $989 spread on the same certified stone. Reve Diamonds lists it at $1,187. 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: Nov 5
Current: $431 USD|Low: $188 USD|High: $1,187 USD|Avg: $516 USD|-0.5%
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
November 6, 2026
Retailer 9$198 USD
Retailer 4$221 USD
Retailer 18$229 USD
Retailer 5$245 USD
Retailer 6$245 USD
Retailer 7$426 USD
Retailer 11$427 USD
Retailer 1$431 USD
Retailer 2$434 USD
Retailer 12$443 USD
Retailer 3$494 USD
Retailer 17$538 USD
Retailer 15$540 USD
Retailer 13$660 USD
Retailer 16$669 USD
Retailer 10$788 USD
Retailer 8$842 USD
Retailer 14$1,144 USD
Reve Diamonds$1,187 USD

38 data points across 19 retailers

23 retailers$198 USD to $1,187 USD

Retailer 1
-
$196 USD
Price last confirmed 46 days ago
A
Retailer 2
-
$198 USD
View
A
Retailer 3
-
$221 USD
View
Final sale: no returns
A
Retailer 4
-
$229 USD
View
Retailer 5
-
$240 USD
View
Price last confirmed 46 days ago
A
Retailer 6
-
$245 USD
View
Retailer 7
-
$245 USD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$426 USD
View
A
Retailer 9
-
$427 USD
View
A
Retailer 10
-
$431 USD
View
A
Retailer 11
-
$434 USD
View
A
Retailer 12
-
$443 USD
View
B+
Retailer 13
-
$494 USD
View
B+
Retailer 14
-
$538 USD
View
B+
Retailer 15
-
$540 USD
View
B+
Retailer 16
-
$660 USD
View
B+
Retailer 17
-
$660 USD
View
B+
Retailer 18
-
$669 USD
View
Retailer 19
-
$782 USD
View
Price last confirmed 46 days ago
B+
Retailer 20
-
$788 USD
View
B
Retailer 21
-
$842 USD
View
B
Retailer 22
-
$1,144 USD
View
Most Expensive
B
Reve Diamonds
EAB8DE9AA · Nov 6
$1,187 USD
View
22 more retailers have this diamond
Prices start from $198 USDSave up to $989 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
1.31ct Round
$198 USD