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Round|Lab Grown|IGI

1.28ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG839654761

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839654761

Diamond specifications and retailer prices

From $321 NZD
$181 USD
As of October 29, 2026
Save $1,081 NZD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,868 NZD at MOH London · As of October 21, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG839654761 or 839654761. Listed at 21 retailers as of October 29, 2026, with a 336% 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

1.28
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839654761
Dimensions6.95 × 6.98 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.95 mm6.98 mm1.28 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839654761
Side View
Table 57.0%Crown 35.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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: $1,868 NZD|Low: $307 NZD|High: $1,882 NZD|Avg: $837 NZD|-0.7%
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
Retailer 16
November 1, 2026
Retailer 15$321 NZD
Retailer 4$373 NZD
Retailer 3$397 NZD
Retailer 6$454 NZD
Retailer 5$536 NZD
Retailer 2$664 NZD
Retailer 10$669 NZD
Retailer 12$683 NZD
Retailer 9$709 NZD
Retailer 7$862 NZD
Retailer 11$944 NZD
Retailer 13$970 NZD
Retailer 14$1,100 NZD
Retailer 8$1,277 NZD
Retailer 16$1,402 NZD
MOH London$1,868 NZD

37 data points across 16 retailers

21 retailers$321 NZD to $1,402 NZD

A
Cheapest Retailer
-
$321 NZD
$181 USD
A
Retailer 2
-
$373 NZD
$210 USD
View
A
Retailer 3
-
$397 NZD
$224 USD
View
A
Retailer 4
-
$397 NZD
$224 USD
View
A
Retailer 5
-
$454 NZD
HK$2,000 HKD
View
B+
Retailer 6
-
$536 NZD
$302 USD
View
A
Retailer 7
-
$664 NZD
£295 GBP
View
A
Retailer 8
-
$669 NZD
€359 EUR
View
A
Retailer 9
-
$683 NZD
ZAR 6,215 ZAR
View
A
Retailer 10
-
$709 NZD
£315 GBP
View
B+
Retailer 11
-
$841 NZD
$474 USD
View
B+
Retailer 12
-
$862 NZD
$486 USD
View
B+
Retailer 13
-
$944 NZD
$532 USD
View
B+
Retailer 14
-
$970 NZD
A$841 AUD
View
Retailer 15
-
$1,100 NZD
$620 USD
View
Price last confirmed 11 days ago
B
Retailer 16
-
$1,277 NZD
$720 USD
View
B
Retailer 17
-
$1,321 NZD
SGD 1,006 SGD
View
B
Retailer 18
-
$1,350 NZD
$761 USD
View
B
Retailer 19
-
$1,374 NZD
$774 USD
View
B
Retailer 20
-
$1,402 NZD
$790 USD
View
Most Expensive
MOH London
LG839654761 · Oct 21
$1,868 NZD
£829 GBP
View
Price last confirmed 11 days ago
20 more retailers have this diamond
Prices start from $321 NZDSave up to $1,081 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
1.28ct Round
$321 NZD