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Round|Lab Grown|IGI

1.39ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG603357557

Shape and cutting style on the report: Round brilliant

Certificate IGI LG603357557

Diamond specifications and retailer prices

From $172 USD
As of October 29, 2026
Save $1,478 USD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,650 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.39ct lab-grown round diamond

This 1.39ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG603357557 or 603357557. Listed at 10 retailers as of October 29, 2026, with prices from $172 to $1,650, a $1,478 spread on the same certified stone. Do Amore Diamonds lists it at $1,650. 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

1.39
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG603357557
Dimensions7.12 × 7.14 × 4.43 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
7.12 mm7.14 mm1.39 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG603357557
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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: $1,650 USD|Low: $139 USD|High: $1,728 USD|Avg: $770 USD|+3.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 18, 2026
Retailer 6$172 USD
Retailer 8$192 USD
Retailer 7$379 USD
Retailer 11$431 USD
Retailer 12$536 USD
Retailer 10$558 USD
Retailer 4$574 USD
Retailer 5$723 USD
Retailer 3$920 USD
Retailer 2$1,105 USD
Do Amore Diamonds$1,650 USD
Retailer 9$1,728 USD

11 data points across 12 retailers

10 retailers$172 USD to $1,650 USD

A
Cheapest Retailer
-
$172 USD
A
Retailer 2
-
$192 USD
View
Final sale: no returns
A
Retailer 3
-
$199 USD
View
B+
Retailer 4
-
$379 USD
View
Retailer 5
-
$723 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$756 USD
View
B
Retailer 7
-
$920 USD
View
Retailer 8
-
$1,105 USD
£870 GBP
View
Price last confirmed 12 days ago
B
Retailer 9
-
$1,560 USD
View
Most Expensive
B
Do Amore Diamonds
27-FCE00A75E · Oct 29
$1,650 USD
View
9 more retailers have this diamond
Prices start from $172 USDSave up to $1,478 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
1.39ct Round
$172 USD