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Round|Lab Grown|IGI

1.20ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG494167338

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494167338

Diamond specifications and retailer prices

From $213 USD
As of October 29, 2026
Save $1,827 USD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,040 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494167338 or 494167338. Listed at 17 retailers as of October 29, 2026, with prices from $213 to $2,040, a $1,827 spread on the same certified stone. Do Amore Diamonds lists it at $2,040. 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

1.20
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494167338
Dimensions6.78 × 6.81 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.78 mm6.81 mm1.20 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494167338
Side View
Table 57.5%Crown 36°Girdle: MED-STKPavilion 40.9°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: Oct 29
Current: $2,040 USD|Low: $212 USD|High: $2,040 USD|Avg: $711 USD
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 14$213 USD
Retailer 12$247 USD
Retailer 3$264 USD
Retailer 11$264 USD
Retailer 2$310 USD
Retailer 9$357 USD
Retailer 15$496 USD
Retailer 7$523 USD
Retailer 13$581 USD
Retailer 8$680 USD
Retailer 5$850 USD
Retailer 6$912 USD
Retailer 4$935 USD
Retailer 16$1,107 USD
Retailer 10$1,172 USD
Do Amore Diamonds$2,040 USD

14 data points across 16 retailers

17 retailers$213 USD to $2,040 USD

A
Cheapest Retailer
-
$213 USD
A
Retailer 2
-
$247 USD
View
A
Retailer 3
-
$264 USD
View
A
Retailer 4
-
$264 USD
View
B+
Retailer 5
-
$310 USD
View
A
Retailer 6
-
$357 USD
£281 GBP
View
A
Retailer 7
-
$496 USD
View
A
Retailer 8
-
$510 USD
View
A
Retailer 9
-
$523 USD
View
A
Retailer 10
-
$581 USD
View
A
Retailer 11
-
$680 USD
View
A
Retailer 12
-
$850 USD
View
A
Retailer 13
-
$912 USD
View
A
Retailer 14
-
$935 USD
View
B+
Retailer 15
-
$1,107 USD
View
A
Retailer 16
-
$1,172 USD
£923 GBP
View
Most Expensive
B
Do Amore Diamonds
27-AE0814E47 · Oct 29
$2,040 USD
View
16 more retailers have this diamond
Prices start from $213 USDSave up to $1,827 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
1.20ct Round
$213 USD