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Round|Lab Grown|IGI

1.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG780697404

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780697404

Diamond specifications and retailer prices

From $138 USD
As of October 29, 2026
Save $857 USD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $995 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 LG780697404 or 780697404. Listed at 19 retailers as of October 29, 2026, with prices from $138 to $995, a $857 spread on the same certified stone. Reve Diamonds lists it at $995. 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 angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780697404
Dimensions6.53 × 6.50 × 4.03 mm
L/W Ratio1.00
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
6.53 mm6.50 mm1.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780697404
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.9%

Caratlytics Score

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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: $290 USD|Low: $134 USD|High: $995 USD|Avg: $408 USD|+3.1%
Retailer 1
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Retailer 17
Reve Diamonds
October 31, 2026
Retailer 2$138 USD
Retailer 5$154 USD
Retailer 15$160 USD
Retailer 6$171 USD
Retailer 16$171 USD
Retailer 1$290 USD
Retailer 17$291 USD
Retailer 13$301 USD
Retailer 7$319 USD
Retailer 12$338 USD
Retailer 10$402 USD
Retailer 8$470 USD
Retailer 4$493 USD
Retailer 3$549 USD
Retailer 11$580 USD
Retailer 9$604 USD
Retailer 14$803 USD
Reve Diamonds$995 USD

38 data points across 18 retailers

19 retailers$138 USD to $995 USD

A
Cheapest Retailer
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$138 USD
A
Retailer 2
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$154 USD
View
Final sale: no returns
A
Retailer 3
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$160 USD
View
A
Retailer 4
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$171 USD
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A
Retailer 5
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$171 USD
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A
Retailer 6
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$290 USD
£228 GBP
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A
Retailer 7
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$291 USD
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A
Retailer 8
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$301 USD
€287 EUR
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A
Retailer 9
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$319 USD
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A
Retailer 10
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$338 USD
£266 GBP
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B+
Retailer 11
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$402 USD
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B+
Retailer 12
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$426 USD
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B+
Retailer 13
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$470 USD
SGD 635 SGD
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B+
Retailer 14
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$493 USD
View
B+
Retailer 15
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$549 USD
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B
Retailer 16
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$580 USD
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B
Retailer 17
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$604 USD
View
B
Retailer 18
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$803 USD
£632 GBP
View
Most Expensive
B
Reve Diamonds
4F5867411 · Oct 30
$995 USD
View
18 more retailers have this diamond
Prices start from $138 USDSave up to $857 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
$138 USD