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Round|Lab Grown|IGI

1.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG783635054

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783635054

Diamond specifications and retailer prices

From $139 USD
As of October 26, 2026
Save $667 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $806 USD at MOH London · As of October 26, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783635054 or 783635054. Listed at 16 retailers as of October 26, 2026, with prices from $139 to $806, a $667 spread on the same certified stone. MOH London lists it at $806. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783635054
Dimensions6.60 × 6.66 × 3.96 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
6.60 mm6.66 mm1.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG783635054
Side View
Table 60.0%Crown 33.3°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 59.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: $806 USD|Low: $139 USD|High: $871 USD|Avg: $367 USD|-7.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
October 30, 2026
Retailer 4$139 USD
Retailer 17$155 USD
Retailer 16$161 USD
Retailer 3$172 USD
Retailer 11$192 USD
Retailer 14$292 USD
Retailer 10$295 USD
Retailer 15$301 USD
Retailer 5$322 USD
Retailer 13$342 USD
Retailer 8$415 USD
Retailer 7$419 USD
Retailer 2$426 USD
Retailer 12$470 USD
Retailer 9$500 USD
Retailer 6$554 USD
MOH London$806 USD

41 data points across 17 retailers

16 retailers$139 USD to $806 USD

A
Cheapest Retailer
-
$139 USD
A
Retailer 2
-
$161 USD
View
Retailer 3
-
$172 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$192 USD
HK$1,500 HKD
View
A
Retailer 5
-
$292 USD
£230 GBP
View
A
Retailer 6
-
$295 USD
€281 EUR
View
A
Retailer 7
-
$301 USD
View
B+
Retailer 8
-
$322 USD
View
A
Retailer 9
-
$342 USD
£269 GBP
View
Retailer 10
-
$415 USD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$419 USD
View
B+
Retailer 12
-
$426 USD
View
B+
Retailer 13
-
$470 USD
SGD 635 SGD
View
B+
Retailer 14
-
$500 USD
View
Retailer 15
-
$554 USD
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
LG783635054 · Oct 26
$806 USD
£635 GBP
View
15 more retailers have this diamond
Prices start from $139 USDSave up to $667 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
1.05ct Round
$139 USD