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Round|Lab Grown|IGI

0.91ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG541250595

Shape and cutting style on the report: Round brilliant

Certificate IGI LG541250595

Diamond specifications and retailer prices

From $189 USD
As of October 29, 2026
Save $913 USD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,102 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.91ct lab-grown round diamond

This 0.91ct lab-grown round sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG541250595 or 541250595. Listed at 17 retailers as of October 29, 2026, with prices from $189 to $1,102, a $913 spread on the same certified stone. MOH London lists it at $1,102. 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

0.91
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541250595
Dimensions6.27 × 6.22 × 3.77 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
6.27 mm6.22 mm0.91 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541250595
Side View
Table 58.0%Crown 32.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.3%

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: $1,102 USD|Low: $182 USD|High: $1,110 USD|Avg: $456 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6$189 USD
Retailer 10$212 USD
Retailer 7$235 USD
Retailer 8$318 USD
Retailer 2$395 USD
Retailer 3$425 USD
Retailer 4$465 USD
Retailer 9$469 USD
Retailer 5$757 USD
MOH London$1,102 USD

42 data points across 10 retailers

17 retailers$189 USD to $1,102 USD

A
Cheapest Retailer
-
$189 USD
A
Retailer 2
-
$212 USD
View
Final sale: no returns
A
Retailer 3
-
$219 USD
View
A
Retailer 4
-
$235 USD
View
A
Retailer 5
-
$235 USD
View
A
Retailer 6
-
$269 USD
HK$2,100 HKD
View
A
Retailer 7
-
$282 USD
View
A
Retailer 8
-
$318 USD
View
A
Retailer 9
-
$395 USD
€376 EUR
View
Retailer 10
-
$425 USD
View
Price last confirmed 46 days ago
B+
Retailer 11
-
$425 USD
£335 GBP
View
B+
Retailer 12
-
$465 USD
£366 GBP
View
B+
Retailer 13
-
$469 USD
View
B+
Retailer 14
-
$639 USD
SGD 864 SGD
View
B
Retailer 15
-
$754 USD
View
B
Retailer 16
-
$757 USD
View
Most Expensive
B
MOH London
LG541250595 · Oct 29
$1,102 USD
£868 GBP
View
16 more retailers have this diamond
Prices start from $189 USDSave up to $913 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
0.91ct Round
$189 USD