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1.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG783638340

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783638340

Diamond specifications and retailer prices

From $258 NZD
As of November 5, 2026
Save $1,238 NZD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,496 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783638340 or 783638340. Listed at 16 retailers as of November 4, 2026, with prices from $258 to $1,496, a $1,238 spread on the same certified stone. MOH London lists it at $1,496. 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

1.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783638340
Dimensions6.51 × 6.47 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.51 mm6.47 mm1.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783638340
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,496 NZD|Low: $249 NZD|High: $1,516 NZD|Avg: $697 NZD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$258 NZD
Retailer 7$320 NZD
Retailer 3$546 NZD
Retailer 2$566 NZD
Retailer 8$592 NZD
Retailer 10$678 NZD
Retailer 9$758 NZD
Retailer 4$818 NZD
Retailer 5$1,089 NZD
MOH London$1,496 NZD

43 data points across 10 retailers

16 retailers$258 NZD to $1,496 NZD

A
Cheapest Retailer
-
$258 NZD
A
Retailer 2
-
$301 NZD
View
Retailer 3
-
$320 NZD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$320 NZD
View
A
Retailer 5
-
$516 NZD
View
A
Retailer 6
-
$546 NZD
View
A
Retailer 7
-
$566 NZD
View
A
Retailer 8
-
$592 NZD
View
Retailer 9
-
$678 NZD
View
Price last confirmed 65 days ago
B+
Retailer 10
-
$758 NZD
View
B+
Retailer 11
-
$818 NZD
View
B+
Retailer 12
-
$831 NZD
View
B
Retailer 13
-
$1,030 NZD
View
B
Retailer 14
-
$1,089 NZD
View
B
Retailer 15
-
$1,128 NZD
View
Most Expensive
B
MOH London
LG783638340 · Nov 4
$1,496 NZD
£662 GBP
View
15 more retailers have this diamond
Prices start from $258 NZDSave up to $1,238 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
1.05ct Round
$258 NZD