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Heart|Lab Grown|IGI

1.71ct I SI2 Heart Lab Grown Diamond

GD • I/SI2 • IGI LG436044977

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG436044977

Diamond specifications and retailer prices

From $759 NZD
As of November 6, 2026
Save $2,540 NZD (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,299 NZD at MOH London · As of November 3, 2026
View at MOH London

About this 1.71ct lab-grown heart diamond

This 1.71ct lab-grown heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG436044977 or 436044977. Listed at 5 retailers as of November 3, 2026, with prices from $759 to $3,299, a $2,540 spread on the same certified stone. MOH London lists it at $3,299. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
I
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436044977
Dimensions6.91 × 6.85 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.91 mm6.85 mm1.71 ctI / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436044977
Side View
Table 61.0%Crown 34.3°Girdle: STK-VTKPavilion 40.2°Culet: NoneDepth 66.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,299 NZD|Low: $759 NZD|High: $3,338 NZD|Avg: $1,753 NZD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5$759 NZD
Retailer 2$844 NZD
Retailer 4$1,301 NZD
Retailer 3$1,346 NZD
Retailer 6$2,733 NZD
MOH London$3,299 NZD

9 data points across 6 retailers

5 retailers$759 NZD to $3,299 NZD

B+
Cheapest Retailer
-
$759 NZD
Final sale: no returns
Retailer 2
-
$844 NZD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$1,301 NZD
View
B+
Retailer 4
-
$1,346 NZD
View
Most Expensive
B
MOH London
436044977 · Nov 3
$3,299 NZD
£1,440 GBP
View
4 more retailers have this diamond
Prices start from $759 NZDSave up to $2,540 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+
1.71ct Heart
$759 NZD