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Oval|Lab Grown|IGI

5.20ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG559202120

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG559202120

Diamond specifications and retailer prices

From $551 USD
As of November 1, 2026
Save $3,303 USD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,854 USD at Adiamor · As of October 31, 2026
View at Adiamor

About this 5.2ct lab-grown oval diamond

This 5.2ct lab-grown oval sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559202120 or 559202120. Listed at 13 retailers as of October 31, 2026, with prices from $551 to $3,854, a $3,303 spread on the same certified stone. Adiamor lists it at $3,854. 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

5.20
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559202120
Dimensions13.91 × 9.79 × 6.18 mm
L/W Ratio1.42
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
13.91 mm9.79 mm5.20 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559202120
Side View
Table 59.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.1%

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: Nov 1
Current: $3,854 USD|Low: $551 USD|High: $7,630 USD|Avg: $2,400 USD
Adiamor
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
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Retailer 17
Retailer 18
November 1, 2026
Retailer 14$551 USD
Retailer 5$617 USD
Retailer 16$683 USD
Retailer 11$726 USD
Retailer 18$768 USD
Retailer 15$815 USD
Retailer 3$1,055 USD
Retailer 17$1,057 USD
Retailer 12$1,065 USD
Retailer 6$1,525 USD
Retailer 13$1,763 USD
Retailer 4$1,797 USD
Retailer 2$2,967 USD
Adiamor$3,854 USD
Retailer 9$3,995 USD
Retailer 8$5,341 USD
Retailer 7$5,536 USD
Retailer 10$7,630 USD

5 data points across 18 retailers

13 retailers$551 USD to $3,854 USD

A
Cheapest Retailer
-
$551 USD
A
Retailer 2
-
$617 USD
View
A
Retailer 3
-
$683 USD
View
A
Retailer 4
-
$726 USD
£572 GBP
View
A
Retailer 5
-
$768 USD
HK$6,000 HKD
View
A
Retailer 6
-
$815 USD
View
B+
Retailer 7
-
$1,055 USD
View
A
Retailer 8
-
$1,057 USD
View
A
Retailer 9
-
$1,065 USD
£839 GBP
View
B+
Retailer 10
-
$1,763 USD
View
B+
Retailer 11
-
$1,797 USD
View
B
Retailer 12
-
$2,967 USD
£2,336 GBP
View
Most Expensive
B
Adiamor
D-82827858 · Oct 31
$3,854 USD
View
12 more retailers have this diamond
Prices start from $551 USDSave up to $3,303 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
5.20ct Oval
$551 USD