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Round|Lab Grown|IGI

1.20ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG492123277

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123277

Diamond specifications and retailer prices

From $1,685 NZD
As of November 4, 2026
Save $1,880 NZD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,006 NZD at Cape Diamonds · As of November 3, 2026
View at Cape Diamonds

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492123277 or 492123277. Listed at 15 retailers as of November 4, 2026, with a 112% 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

1.20
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123277
Dimensions6.76 × 6.74 × 4.23 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.76 mm6.74 mm1.20 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123277
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.7%

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 4
Current: $6,006 NZD|Low: $1,685 NZD|High: $9,432 NZD|Avg: $4,739 NZD|+2.5%
Cape Diamonds
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
November 4, 2026
Retailer 14$1,685 NZD
Retailer 13$2,814 NZD
Retailer 4$3,062 NZD
Retailer 3$3,151 NZD
Retailer 15$3,264 NZD
Retailer 17$3,264 NZD
Retailer 9$3,410 NZD
Retailer 7$3,566 NZD
Retailer 8$4,366 NZD
Retailer 16$5,136 NZD
Retailer 11$5,496 NZD
Retailer 12$5,773 NZD
Cape Diamonds$6,006 NZD
Retailer 5$6,119 NZD
Retailer 2$7,848 NZD
Retailer 6$7,866 NZD
Retailer 10$9,322 NZD

31 data points across 17 retailers

15 retailers$1,685 NZD to $3,566 NZD

B
Cheapest Retailer
-
$1,685 NZD
B
Retailer 2
-
$2,814 NZD
View
B
Retailer 3
-
$3,062 NZD
View
B
Retailer 4
-
$3,151 NZD
View
Final sale: no returns
Retailer 5
-
$3,264 NZD
View
Price last confirmed 24 days ago
B
Retailer 6
-
$3,264 NZD
View
B
Retailer 7
-
$3,566 NZD
View
Retailer 8
-
$5,136 NZD
View
Price under review
Retailer 9
-
$5,496 NZD
View
Price under review
Retailer 10
-
$5,773 NZD
View
Price under review
Most Expensive
Cape Diamonds
cert_492123277 · Nov 3
$6,006 NZD
ZAR 54,692 ZAR
View
Price under review
10 more retailers have this diamond
Prices start from $1,685 NZDSave up to $1,880 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
1.20ct Round
$1,685 NZD