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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG838654059

Shape and cutting style on the report: Round brilliant

Certificate IGI LG838654059

Diamond specifications and retailer prices

From $414 SGD
$324 USD
As of November 1, 2026
Save $2,706 SGD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,121 SGD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG838654059 or 838654059. Listed at 19 retailers as of November 1, 2026, with prices from $414 to $3,121, a $2,706 spread on the same certified stone. Brilliant Earth lists it at $3,121. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838654059
Dimensions6.81 × 6.87 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.81 mm6.87 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838654059
Side View
Table 58.0%Crown 35.9°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 61.3%

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: Nov 1
Current: $3,121 SGD|Low: $402 SGD|High: $3,121 SGD|Avg: $1,215 SGD
Brilliant Earth
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
November 3, 2026
Retailer 13$414 SGD
Retailer 6$464 SGD
Retailer 15$514 SGD
Retailer 14$691 SGD
Retailer 8$815 SGD
Retailer 9$887 SGD
Retailer 2$909 SGD
Retailer 4$928 SGD
Retailer 12$1,249 SGD
Retailer 11$1,251 SGD
Retailer 5$1,673 SGD
Retailer 7$1,778 SGD
Retailer 3$2,033 SGD
Retailer 10$2,059 SGD
Brilliant Earth$3,121 SGD

39 data points across 15 retailers

19 retailers$414 SGD to $3,121 SGD

A
Cheapest Retailer
-
$414 SGD
$324 USD
Retailer 2
-
$418 SGD
$327 USD
View
Price last confirmed 41 days ago
A
Retailer 3
-
$464 SGD
$363 USD
View
Final sale: no returns
Retailer 4
-
$485 SGD
$379 USD
View
Price last confirmed 41 days ago
Retailer 5
-
$512 SGD
$400 USD
View
Price last confirmed 38 days ago
Retailer 6
-
$514 SGD
$402 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$691 SGD
$540 USD
View
A
Retailer 8
-
$815 SGD
€607 EUR
View
B+
Retailer 9
-
$887 SGD
ZAR 11,199 ZAR
View
B+
Retailer 10
-
$909 SGD
£559 GBP
View
B+
Retailer 11
-
$928 SGD
$726 USD
View
B+
Retailer 12
-
$1,249 SGD
A$1,502 AUD
View
B+
Retailer 13
-
$1,251 SGD
$978 USD
View
Retailer 14
-
$1,666 SGD
$1,303 USD
View
Price last confirmed 38 days ago
B
Retailer 15
-
$1,673 SGD
View
B
Retailer 16
-
$1,778 SGD
$1,390 USD
View
B
Retailer 17
-
$2,033 SGD
$1,590 USD
View
B+
Retailer 18
-
$2,059 SGD
£1,268 GBP
View
Most Expensive
B
Brilliant Earth
21659255A · Nov 2
$3,121 SGD
$2,440 USD
View
18 more retailers have this diamond
Prices start from $414 SGDSave up to $2,706 SGD

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
$414 SGD