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Round|Lab Grown|IGI

3.10ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG620427709

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620427709

Diamond specifications and retailer prices

From $2,264 NZD
As of November 5, 2026
Save $734 NZD (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,998 NZD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.1ct lab-grown round diamond

This 3.1ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG620427709 or 620427709. Listed at 3 retailers as of November 5, 2026, with prices from $2,264 to $2,998, a $734 spread on the same certified stone. The Diamond Guys lists it at $2,998. 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

3.10
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620427709
Dimensions9.36 × 9.30 × 5.72 mm
L/W Ratio1.01
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
9.36 mm9.30 mm3.10 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620427709
Side View
Table 59.0%Crown 34.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $608 NZD|Low: $453 NZD|High: $7,630 NZD|Avg: $2,388 NZD|+29.6%
Retailer 1
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
The Diamond Guys
September 18, 2026
Retailer 1$608 NZD
Retailer 12$698 NZD
Retailer 7$707 NZD
Retailer 10$980 NZD
Retailer 11$1,104 NZD
Retailer 8$1,194 NZD
Retailer 9$1,241 NZD
Retailer 13$1,735 NZD
Retailer 2$1,741 NZD
Retailer 14$1,878 NZD
Retailer 3$1,907 NZD
Retailer 5$2,264 NZD
The Diamond Guys$2,998 NZD
Retailer 6$4,780 NZD
Retailer 4$7,630 NZD

66 data points across 15 retailers

3 retailers$2,264 NZD to $2,998 NZD

Retailer 1
-
$698 NZD
Price last confirmed 51 days ago
B+
Retailer 2
-
$2,264 NZD
View
Most Expensive
B
The Diamond Guys
1954434400 · Nov 6
$2,998 NZD
$1,662 USD
View
2 more retailers have this diamond
Prices start from $2,264 NZDSave up to $734 NZD

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.

B+
3.10ct Round
$2,264 NZD