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Round|Lab Grown|IGI

1.21ct D VS1 Round Lab Grown Diamond

EX • D/VS1 • IGI LG778645864

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645864

Diamond specifications and retailer prices

From $332 NZD
As of November 3, 2026
Save $1,802 NZD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,717 NZD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778645864 or 778645864. Listed at 23 retailers as of November 3, 2026, with a 543% 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

1.21
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645864
Dimensions6.93 × 6.96 × 4.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.93 mm6.96 mm1.21 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645864
Side View
Table 57.0%Crown 32.1°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 60.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $736 NZD|Low: $318 NZD|High: $2,134 NZD|Avg: $889 NZD|+5.6%
Retailer 1
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
November 5, 2026
Retailer 13$332 NZD
Retailer 7$371 NZD
Retailer 6$385 NZD
Retailer 15$412 NZD
Retailer 2$553 NZD
Retailer 12$710 NZD
Retailer 1$736 NZD
Retailer 10$759 NZD
Retailer 5$848 NZD
Retailer 11$1,002 NZD
Retailer 4$1,322 NZD
Retailer 9$1,327 NZD
Retailer 3$1,378 NZD
Retailer 8$1,916 NZD
Retailer 14$2,134 NZD

44 data points across 15 retailers

23 retailers$332 NZD to $2,134 NZD

A
Cheapest Retailer
-
$332 NZD
A
Retailer 2
-
$371 NZD
View
Final sale: no returns
A
Retailer 3
-
$385 NZD
View
A
Retailer 4
-
$412 NZD
View
Retailer 5
-
$412 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$454 NZD
View
B+
Retailer 7
-
$553 NZD
View
A
Retailer 8
-
$697 NZD
View
A
Retailer 9
-
$710 NZD
View
B+
Retailer 10
-
$736 NZD
View
B+
Retailer 11
-
$759 NZD
View
B+
Retailer 12
-
$848 NZD
View
B+
Retailer 13
-
$1,002 NZD
View
B+
Retailer 14
-
$1,063 NZD
View
B
Retailer 15
-
$1,322 NZD
View
B
Retailer 16
-
$1,327 NZD
View
B
Retailer 17
-
$1,339 NZD
View
B
Retailer 18
-
$1,378 NZD
View
B
Retailer 19
-
$1,417 NZD
View
B
Retailer 20
-
$1,916 NZD
View
B
Retailer 21
-
$2,042 NZD
View
B
Retailer 22
-
$2,134 NZD
View
Most Expensive
Queensmith
LG778645864 · Oct 27
$3,717 NZD
£1,650 GBP
View
Price last confirmed 8 days ago
22 more retailers have this diamond
Prices start from $332 NZDSave up to $1,802 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
1.21ct Round
$332 NZD