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Round|Lab Grown|IGI

3.98ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG615379562

Shape and cutting style on the report: Round brilliant

Certificate IGI LG615379562

Diamond specifications and retailer prices

From $601 USD
As of November 1, 2026
Save $2,639 USD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,240 USD at MOH London · As of October 26, 2026
View at MOH London

About this 3.98ct lab-grown round diamond

This 3.98ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG615379562 or 615379562. Listed at 17 retailers as of October 26, 2026, with prices from $601 to $3,240, a $2,639 spread on the same certified stone. MOH London lists it at $3,240. 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

3.98
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615379562
Dimensions10.19 × 10.21 × 6.27 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
10.19 mm10.21 mm3.98 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615379562
Side View
Table 58.0%Crown 34.4°Girdle: Med.Pavilion 41.2°Culet: NoneDepth 61.5%

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: $3,240 USD|Low: $481 USD|High: $4,090 USD|Avg: $1,551 USD|+0.1%
MOH London
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 1, 2026
Retailer 14$601 USD
Retailer 5$673 USD
Retailer 7$674 USD
Retailer 15$745 USD
Retailer 9$875 USD
Retailer 13$1,000 USD
Retailer 4$1,054 USD
Retailer 2$1,163 USD
Retailer 11$1,185 USD
Retailer 12$1,850 USD
Retailer 6$1,960 USD
Retailer 10$1,980 USD
Retailer 3$2,355 USD
Retailer 8$2,580 USD
MOH London$3,240 USD

43 data points across 15 retailers

17 retailers$601 USD to $3,240 USD

A
Cheapest Retailer
-
$601 USD
A
Retailer 2
-
$673 USD
View
A
Retailer 3
-
$674 USD
View
Final sale: no returns
Retailer 4
-
$745 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$745 USD
View
A
Retailer 6
-
$819 USD
HK$6,400 HKD
View
A
Retailer 7
-
$875 USD
View
B+
Retailer 8
-
$1,000 USD
View
A
Retailer 9
-
$1,054 USD
View
A
Retailer 10
-
$1,163 USD
£915 GBP
View
B
Retailer 11
-
$1,850 USD
View
B+
Retailer 12
-
$1,960 USD
View
Retailer 13
-
$1,980 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$2,355 USD
SGD 3,183 SGD
View
B
Retailer 15
-
$2,580 USD
View
B
Retailer 16
-
$3,000 USD
View
Most Expensive
B
MOH London
LG615379562 · Oct 26
$3,240 USD
£2,551 GBP
View
16 more retailers have this diamond
Prices start from $601 USDSave up to $2,639 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
3.98ct Round
$601 USD