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Radiant|Lab Grown|IGI

0.51ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG819640701

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG819640701

Diamond specifications and retailer prices

From $193 NZD
$109 USD
As of October 30, 2026
Save $1,410 NZD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,015 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG819640701 or 819640701. Listed at 18 retailers as of October 30, 2026, with a 729% 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

0.51
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle19.9°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819640701
Dimensions6.09 × 3.90 × 2.57 mm
L/W Ratio1.56
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.09 mm3.90 mm0.51 ctD / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG819640701
Side View
Table 64.0%Crown 19.9°Girdle: Slightly ThickPavilion 36.7°Culet: NoneDepth 65.9%

Caratlytics Score

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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: $2,015 NZD|Low: $186 NZD|High: $2,028 NZD|Avg: $586 NZD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9$193 NZD
Retailer 3$216 NZD
Retailer 11$225 NZD
Retailer 10$255 NZD
Retailer 7$381 NZD
Retailer 5$432 NZD
Retailer 4$440 NZD
Retailer 2$480 NZD
Retailer 8$562 NZD
Retailer 6$580 NZD
Retailer 12$1,271 NZD
MOH London$2,015 NZD

45 data points across 12 retailers

18 retailers$193 NZD to $1,603 NZD

A
Cheapest Retailer
-
$193 NZD
$109 USD
A
Retailer 2
-
$216 NZD
$122 USD
View
Final sale: no returns
A
Retailer 3
-
$225 NZD
$127 USD
View
A
Retailer 4
-
$255 NZD
$144 USD
View
A
Retailer 5
-
$273 NZD
HK$1,200 HKD
View
A
Retailer 6
-
$337 NZD
$190 USD
View
Retailer 7
-
$381 NZD
$215 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$432 NZD
€232 EUR
View
A
Retailer 9
-
$440 NZD
$248 USD
View
B+
Retailer 10
-
$480 NZD
£213 GBP
View
B+
Retailer 11
-
$562 NZD
$317 USD
View
B+
Retailer 12
-
$580 NZD
£257 GBP
View
B+
Retailer 13
-
$679 NZD
SGD 517 SGD
View
B
Retailer 14
-
$738 NZD
$416 USD
View
B
Retailer 15
-
$874 NZD
$493 USD
View
B
Retailer 16
-
$1,271 NZD
£564 GBP
View
B
Retailer 17
-
$1,603 NZD
$904 USD
View
Most Expensive
MOH London
LG819640701 · Oct 29
$2,015 NZD
£894 GBP
View
Price under review
17 more retailers have this diamond
Prices start from $193 NZDSave up to $1,410 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
0.51ct Radiant
$193 NZD