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Round|Lab Grown|IGI

1.78ct G VVS2 Round Lab Grown Diamond

ID • G/VVS2 • IGI LG781609698

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781609698

Diamond specifications and retailer prices

From $431 NZD
$243 USD
As of October 29, 2026
Save $2,354 NZD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,786 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781609698 or 781609698. Listed at 22 retailers as of October 28, 2026, with prices from $431 to $2,786, a $2,354 spread on the same certified stone. Brilliant Earth lists it at $2,786. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
G
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781609698
Dimensions7.78 × 7.83 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.78 mm7.83 mm1.78 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781609698
Side View
Table 57.0%Crown 33.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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 29
Current: $2,786 NZD|Low: $422 NZD|High: $3,034 NZD|Avg: $1,276 NZD|-8.2%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 13$431 NZD
Retailer 9$500 NZD
Retailer 8$534 NZD
Retailer 2$836 NZD
Retailer 16$889 NZD
Retailer 3$898 NZD
Retailer 5$919 NZD
Retailer 15$997 NZD
Retailer 12$1,011 NZD
Retailer 17$1,114 NZD
Retailer 7$1,246 NZD
Retailer 11$1,373 NZD
Retailer 6$1,719 NZD
Retailer 10$1,811 NZD
Retailer 4$2,005 NZD
Retailer 14$2,154 NZD
Retailer 19$2,174 NZD
Retailer 18$2,372 NZD
Brilliant Earth$2,786 NZD

32 data points across 19 retailers

22 retailers$431 NZD to $2,786 NZD

A
Cheapest Retailer
-
$431 NZD
$243 USD
A
Retailer 2
-
$500 NZD
$282 USD
View
A
Retailer 3
-
$534 NZD
$301 USD
View
A
Retailer 4
-
$546 NZD
$308 USD
View
A
Retailer 5
-
$836 NZD
£371 GBP
View
A
Retailer 6
-
$889 NZD
€477 EUR
View
B+
Retailer 7
-
$898 NZD
$506 USD
View
A
Retailer 8
-
$919 NZD
ZAR 8,363 ZAR
View
A
Retailer 9
-
$997 NZD
$562 USD
View
A
Retailer 10
-
$1,011 NZD
£449 GBP
View
B+
Retailer 11
-
$1,114 NZD
$628 USD
View
B+
Retailer 12
-
$1,246 NZD
A$1,080 AUD
View
B+
Retailer 13
-
$1,373 NZD
$774 USD
View
Retailer 14
-
$1,602 NZD
$903 USD
View
Price last confirmed 44 days ago
B+
Retailer 15
-
$1,719 NZD
$969 USD
View
B
Retailer 16
-
$1,811 NZD
$1,021 USD
View
B
Retailer 17
-
$1,938 NZD
$1,092 USD
View
B
Retailer 18
-
$2,005 NZD
$1,130 USD
View
B
Retailer 19
-
$2,154 NZD
£956 GBP
View
B
Retailer 20
-
$2,174 NZD
$1,225 USD
View
B
Retailer 21
-
$2,372 NZD
$1,337 USD
View
Most Expensive
B
Brilliant Earth
18294398A · Oct 28
$2,786 NZD
$1,570 USD
View
21 more retailers have this diamond
Prices start from $431 NZDSave up to $2,354 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
$431 NZD