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Round|Lab Grown|IGI

1.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG770641611

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770641611

Diamond specifications and retailer prices

From $148 USD
As of October 29, 2026
Save $880 USD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,028 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 LG770641611 or 770641611. Listed at 19 retailers as of October 29, 2026, with prices from $148 to $1,028, a $880 spread on the same certified stone. Reve Diamonds lists it at $1,028. 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
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770641611
Dimensions6.49 × 6.44 × 4.00 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
6.49 mm6.44 mm1.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770641611
Side View
Table 57.0%Crown 34.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.8%

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: Oct 29
Current: $317 USD|Low: $116 USD|High: $1,028 USD|Avg: $461 USD|+7.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Reve Diamonds
October 31, 2026
Retailer 5$148 USD
Retailer 3$165 USD
Retailer 11$172 USD
Retailer 13$184 USD
Retailer 15$184 USD
Retailer 7$295 USD
Retailer 1$317 USD
Retailer 14$339 USD
Retailer 10$360 USD
Retailer 12$429 USD
Retailer 2$496 USD
Retailer 6$590 USD
Retailer 4$646 USD
Retailer 8$660 USD
Retailer 9$864 USD
Reve Diamonds$1,028 USD

45 data points across 16 retailers

19 retailers$148 USD to $1,028 USD

Retailer 1
-
$147 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$148 USD
View
A
Retailer 3
-
$165 USD
View
Final sale: no returns
A
Retailer 4
-
$172 USD
View
Retailer 5
-
$180 USD
View
Price last confirmed 39 days ago
A
Retailer 6
-
$184 USD
View
A
Retailer 7
-
$184 USD
View
A
Retailer 8
-
$295 USD
View
A
Retailer 9
-
$317 USD
£250 GBP
View
B+
Retailer 10
-
$339 USD
View
B+
Retailer 11
-
$360 USD
€343 EUR
View
B+
Retailer 12
-
$429 USD
View
B+
Retailer 13
-
$496 USD
View
Retailer 14
-
$586 USD
View
Price last confirmed 40 days ago
B
Retailer 15
-
$590 USD
View
B
Retailer 16
-
$646 USD
View
B
Retailer 17
-
$660 USD
View
B
Retailer 18
-
$864 USD
£680 GBP
View
Most Expensive
B
Reve Diamonds
820D6027C · Oct 30
$1,028 USD
View
18 more retailers have this diamond
Prices start from $148 USDSave up to $880 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
$148 USD