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Round|Lab Grown|IGI

1.05ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG818644805

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644805

Diamond specifications and retailer prices

From $210 USD
As of October 29, 2026
Save $1,746 USD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,956 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818644805 or 818644805. Listed at 24 retailers as of October 27, 2026, with prices from $210 to $1,956, a $1,746 spread on the same certified stone. Queensmith lists it at $1,956. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644805
Dimensions6.56 × 6.60 × 3.95 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.56 mm6.60 mm1.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644805
Side View
Table 60.0%Crown 33°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.0%

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: Oct 29
Current: $479 USD|Low: $202 USD|High: $1,350 USD|Avg: $574 USD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 2$210 USD
Retailer 4$261 USD
Retailer 3$352 USD
Retailer 5$423 USD
Retailer 7$436 USD
Retailer 8$448 USD
Retailer 1$479 USD
Retailer 9$638 USD
Retailer 12$674 USD
Retailer 10$1,045 USD
Retailer 6$1,050 USD
Retailer 11$1,350 USD

36 data points across 12 retailers

24 retailers$210 USD to $1,956 USD

A
Cheapest Retailer
-
$210 USD
A
Retailer 2
-
$236 USD
View
Final sale: no returns
A
Retailer 3
-
$244 USD
View
A
Retailer 4
-
$261 USD
View
A
Retailer 5
-
$261 USD
View
A
Retailer 6
-
$294 USD
HK$2,300 HKD
View
A
Retailer 7
-
$352 USD
View
A
Retailer 8
-
$423 USD
£333 GBP
View
A
Retailer 9
-
$436 USD
€415 EUR
View
A
Retailer 10
-
$448 USD
ZAR 7,237 ZAR
View
A
Retailer 11
-
$479 USD
£377 GBP
View
A
Retailer 12
-
$497 USD
View
A
Retailer 13
-
$506 USD
View
B+
Retailer 14
-
$638 USD
A$981 AUD
View
B+
Retailer 15
-
$674 USD
View
B+
Retailer 16
-
$707 USD
SGD 956 SGD
View
B+
Retailer 17
-
$838 USD
View
B+
Retailer 18
-
$891 USD
View
B+
Retailer 19
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$891 USD
View
B+
Retailer 20
-
$1,045 USD
View
Price last confirmed 8 days ago
B+
Retailer 21
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$1,050 USD
£827 GBP
View
B
Retailer 22
-
$1,227 USD
View
B
Retailer 23
-
$1,350 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Queensmith
LG818644805 · Oct 27
$1,956 USD
£1,540 GBP
View
23 more retailers have this diamond
Prices start from $210 USDSave up to $1,746 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
$210 USD