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0.61ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG301781309

Shape and cutting style on the report: Round brilliant

Certificate IGI LG301781309

Diamond specifications and retailer prices

From $453 NZD
€243 EUR
As of October 31, 2026
Save $239 NZD (35%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $692 NZD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 0.61ct lab-grown round diamond

This 0.61ct lab-grown round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG301781309 or 301781309. Listed at 2 retailers as of October 31, 2026, with prices from $453 to $692, a $239 spread on the same certified stone. Brilliant Earth lists it at $692. 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

0.61
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG301781309
Dimensions5.43 × 5.41 × 3.38 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANTThis Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
5.43 mm5.41 mm0.61 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG301781309
Side View
Table 57.5%Crown 36.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $692 NZD|Low: $346 NZD|High: $710 NZD|Avg: $501 NZD|-2.5%
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$346 NZD
Retailer 2$453 NZD
Brilliant Earth$692 NZD

6 data points across 3 retailers

2 retailers$453 NZD to $692 NZD

A
Cheapest Retailer
-
$453 NZD
€243 EUR
Most Expensive
B+
Brilliant Earth
16335526A · Nov 1
$692 NZD
$390 USD
View
1 more retailer has this diamond
Prices start from $453 NZDSave up to $239 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.

A
0.61ct Round
$453 NZD