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Round|Lab Grown|IGI

1.61ct K SI2 Round Lab Grown Diamond

EX • K/SI2 • IGI LG445037465

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445037465

Diamond specifications and retailer prices

From $3,423 NZD
As of November 5, 2026
Save $4,019 NZD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,307 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.61ct lab-grown round diamond

This 1.61ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037465 or 445037465. Listed at 9 retailers as of November 5, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.61
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037465
Dimensions7.52 × 7.56 × 4.68 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.52 mm7.56 mm1.61 ctK / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445037465
Side View
Table 55.5%Crown 31.8°GirdlePavilion 41.6°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,307 NZD|Low: $3,286 NZD|High: $11,474 NZD|Avg: $6,108 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$3,423 NZD
Retailer 5$3,969 NZD
Retailer 7$3,969 NZD
Retailer 2$4,344 NZD
Retailer 8$5,077 NZD
Retailer 6$6,217 NZD
Retailer 3$6,518 NZD
Retailer 9$8,882 NZD
MOH London$11,307 NZD

39 data points across 9 retailers

9 retailers$3,423 NZD to $7,441 NZD

B
Cheapest Retailer
-
$3,423 NZD
B
Retailer 2
-
$3,723 NZD
View
B
Retailer 3
-
$3,969 NZD
View
Retailer 4
-
$3,969 NZD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$4,344 NZD
View
B
Retailer 6
-
$6,217 NZD
View
C
Retailer 7
-
$6,518 NZD
View
C
Retailer 8
-
$7,441 NZD
View
Most Expensive
MOH London
LG445037465 · Nov 5
$11,307 NZD
£5,005 GBP
View
Price under review
8 more retailers have this diamond
Prices start from $3,423 NZDSave up to $4,019 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
1.61ct Round
$3,423 NZD