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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 $335 NZD
$189 USD
As of November 1, 2026
Save $1,612 NZD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,947 NZD at MOH London · As of November 1, 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 November 1, 2026, with prices from $335 to $1,947, a $1,612 spread on the same certified stone. MOH London lists it at $1,947. 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
Colour
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

How it works →
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 1
Current: $1,947 NZD|Low: $323 NZD|High: $1,969 NZD|Avg: $810 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$335 NZD
Retailer 10$376 NZD
Retailer 7$417 NZD
Retailer 8$564 NZD
Retailer 4$700 NZD
Retailer 2$754 NZD
Retailer 3$822 NZD
Retailer 9$832 NZD
Retailer 5$1,343 NZD
MOH London$1,947 NZD

43 data points across 10 retailers

17 retailers$335 NZD to $1,947 NZD

A
Cheapest Retailer
-
$335 NZD
$189 USD
A
Retailer 2
-
$376 NZD
$212 USD
View
Final sale: no returns
A
Retailer 3
-
$389 NZD
$219 USD
View
A
Retailer 4
-
$417 NZD
$235 USD
View
Retailer 5
-
$417 NZD
$235 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$477 NZD
HK$2,100 HKD
View
A
Retailer 7
-
$500 NZD
$282 USD
View
A
Retailer 8
-
$564 NZD
$318 USD
View
A
Retailer 9
-
$700 NZD
€376 EUR
View
Retailer 10
-
$754 NZD
$425 USD
View
Price last confirmed 47 days ago
B+
Retailer 11
-
$754 NZD
£335 GBP
View
B+
Retailer 12
-
$822 NZD
£365 GBP
View
B+
Retailer 13
-
$832 NZD
$469 USD
View
B+
Retailer 14
-
$1,134 NZD
SGD 864 SGD
View
B
Retailer 15
-
$1,338 NZD
$754 USD
View
B
Retailer 16
-
$1,343 NZD
$757 USD
View
Most Expensive
B
MOH London
LG541250595 · Nov 1
$1,947 NZD
£864 GBP
View
16 more retailers have this diamond
Prices start from $335 NZDSave up to $1,612 NZD

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
$335 NZD