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Round|Lab Grown|IGI

1.56ct K VS1 Round Lab Grown Diamond

EX • K/VS1 • IGI LG451056920

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451056920

Diamond specifications and retailer prices

From $3,987 NZD
As of November 5, 2026
Save $4,542 NZD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $12,548 NZD at MOH London · As of November 3, 2026
View at MOH London

About this 1.56ct lab-grown round diamond

This 1.56ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG451056920 or 451056920. Listed at 10 retailers as of November 3, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056920
Dimensions7.37 × 7.38 × 4.61 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.37 mm7.38 mm1.56 ctK / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056920
Side View
Table 55.5%Crown 35°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.5%

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 5
Current: $12,548 NZD|Low: $3,828 NZD|High: $12,717 NZD|Avg: $6,980 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 6$3,987 NZD
Retailer 9$4,339 NZD
Retailer 7$4,625 NZD
Retailer 4$4,919 NZD
Retailer 11$5,828 NZD
Retailer 10$6,358 NZD
Retailer 8$7,221 NZD
Retailer 5$7,249 NZD
Retailer 2$8,528 NZD
Retailer 3$10,350 NZD
MOH London$12,548 NZD

22 data points across 11 retailers

10 retailers$3,987 NZD to $8,528 NZD

B+
Cheapest Retailer
-
$3,987 NZD
B
Retailer 2
-
$4,339 NZD
View
B
Retailer 3
-
$4,625 NZD
View
Retailer 4
-
$4,625 NZD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$4,919 NZD
View
B
Retailer 6
-
$6,358 NZD
View
B
Retailer 7
-
$7,221 NZD
View
B
Retailer 8
-
$7,249 NZD
View
B
Retailer 9
-
$8,528 NZD
View
Most Expensive
MOH London
LG451056920 · Nov 3
$12,548 NZD
£5,554 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $3,987 NZDSave up to $4,542 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+
1.56ct Round
$3,987 NZD