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Round|Lab Grown|IGI

1.20ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG786633849

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786633849

Diamond specifications and retailer prices

From $173 USD
As of October 29, 2026
Save $934 USD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,107 USD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.2ct lab-grown round diamond

This 1.2ct 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 LG786633849 or 786633849. Listed at 19 retailers as of October 28, 2026, with prices from $173 to $1,107, a $934 spread on the same certified stone. Reve Diamonds lists it at $1,107. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786633849
Dimensions6.74 × 6.80 × 4.20 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
6.74 mm6.80 mm1.20 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786633849
Side View
Table 57.0%Crown 34.8°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.0%

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: $381 USD|Low: $137 USD|High: $1,015 USD|Avg: $439 USD|+6.2%
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 9$193 USD
Retailer 2$201 USD
Retailer 4$243 USD
Retailer 10$290 USD
Retailer 3$374 USD
Retailer 1$381 USD
Retailer 5$400 USD
Retailer 12$463 USD
Retailer 7$470 USD
Retailer 8$537 USD
Retailer 11$760 USD
Retailer 6$1,005 USD

41 data points across 12 retailers

19 retailers$173 USD to $1,107 USD

A
Cheapest Retailer
-
$173 USD
A
Retailer 2
-
$193 USD
View
Final sale: no returns
A
Retailer 3
-
$201 USD
View
A
Retailer 4
-
$214 USD
View
A
Retailer 5
-
$214 USD
View
A
Retailer 6
-
$243 USD
HK$1,900 HKD
View
B+
Retailer 7
-
$290 USD
View
B+
Retailer 8
-
$374 USD
View
B+
Retailer 9
-
$381 USD
£300 GBP
View
B+
Retailer 10
-
$400 USD
€381 EUR
View
B+
Retailer 11
-
$463 USD
View
Retailer 12
-
$470 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$537 USD
View
B
Retailer 14
-
$689 USD
View
B
Retailer 15
-
$704 USD
SGD 951 SGD
View
B
Retailer 16
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$744 USD
View
B
Retailer 17
-
$760 USD
View
B
Retailer 18
-
$1,005 USD
£791 GBP
View
Most Expensive
B
Reve Diamonds
AF34E0DA2 · Oct 28
$1,107 USD
View
18 more retailers have this diamond
Prices start from $173 USDSave up to $934 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
$173 USD