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Round|Lab Grown|IGI

1.78ct J VVS2 Round Lab Grown Diamond

EX • J/VVS2 • IGI LG407950745

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407950745

Diamond specifications and retailer prices

From $1,810 NZD
$1,020 USD
As of October 30, 2026
Save $8,042 NZD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,852 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.78ct lab-grown round diamond

This 1.78ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG407950745 or 407950745. Listed at 12 retailers as of October 29, 2026, with prices from $1,810 to $9,852, a $8,042 spread on the same certified stone. MOH London lists it at $9,852. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
J
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407950745
Dimensions7.74 × 7.69 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.74 mm7.69 mm1.78 ctJ / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407950745
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $9,852 NZD|Low: $1,810 NZD|High: $9,931 NZD|Avg: $4,946 NZD|+0.5%
MOH London
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
Retailer 15
October 30, 2026
Retailer 2$1,810 NZD
Retailer 10$2,958 NZD
Retailer 13$3,219 NZD
Retailer 15$3,311 NZD
Retailer 11$3,431 NZD
Retailer 6$3,442 NZD
Retailer 3$3,735 NZD
Retailer 7$3,766 NZD
Retailer 4$4,606 NZD
Retailer 12$5,392 NZD
Retailer 9$5,916 NZD
Retailer 8$6,308 NZD
Retailer 14$6,432 NZD
Retailer 5$9,822 NZD
MOH London$9,852 NZD

21 data points across 15 retailers

12 retailers$1,810 NZD to $9,852 NZD

A
Cheapest Retailer
-
$1,810 NZD
$1,020 USD
B+
Retailer 2
-
$2,958 NZD
$1,667 USD
View
B+
Retailer 3
-
$3,219 NZD
$1,814 USD
View
B+
Retailer 4
-
$3,311 NZD
$1,866 USD
View
Final sale: no returns
Retailer 5
-
$3,431 NZD
$1,934 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$3,431 NZD
$1,934 USD
View
B+
Retailer 7
-
$3,735 NZD
$2,105 USD
View
B
Retailer 8
-
$5,392 NZD
$3,039 USD
View
B
Retailer 9
-
$5,916 NZD
$3,334 USD
View
B
Retailer 10
-
$6,308 NZD
ZAR 57,435 ZAR
View
B
Retailer 11
-
$6,432 NZD
$3,625 USD
View
Most Expensive
B
MOH London
LG407950745 · Oct 29
$9,852 NZD
£4,372 GBP
View
11 more retailers have this diamond
Prices start from $1,810 NZDSave up to $8,042 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
1.78ct Round
$1,810 NZD