Emerald|Lab Grown|IGI

0.51ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG670422659

Shape and cutting style on the report: Emerald cut

Certificate IGI LG670422659

Diamond specifications and retailer prices

From $592 NZD
€317 EUR
As of October 27, 2026
Save $365 NZD (38%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,771 NZD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 0.51ct lab-grown emerald diamond

This 0.51ct lab-grown emerald sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG670422659 or 670422659. Listed at 24 retailers as of October 26, 2026, with a 62% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670422659
Dimensions5.32 × 3.78 × 2.57 mm
L/W Ratio1.41
Culet sizeLong
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
5.32 mm3.78 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670422659
Side View
Table 61.0%Crown 32°Girdle: STK-THKPavilion 39.5°Culet: LNGDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $615 NZD|Low: $238 NZD|High: $1,779 NZD|Avg: $772 NZD
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Reve Diamonds
October 28, 2026
Retailer 13$238 NZD
Retailer 5$274 NZD
Retailer 21$284 NZD
Retailer 3$304 NZD
Retailer 16$304 NZD
Retailer 18$502 NZD
Retailer 19$542 NZD
Retailer 11$572 NZD
Retailer 15$592 NZD
Retailer 1$615 NZD
Retailer 4$706 NZD
Retailer 20$750 NZD
Retailer 12$775 NZD
Retailer 9$853 NZD
Retailer 6$924 NZD
Retailer 7$956 NZD
Retailer 8$979 NZD
Retailer 2$1,034 NZD
Retailer 10$1,078 NZD
Retailer 17$1,424 NZD
Retailer 14$1,598 NZD
Reve Diamonds$1,771 NZD

37 data points across 22 retailers

24 retailers$592 NZD to $956 NZD

Retailer 1
-
$238 NZD
$134 USD
Price last confirmed 31 days ago
Retailer 2
-
$284 NZD
$160 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$288 NZD
$162 USD
View
Price last confirmed 27 days ago
Retailer 4
-
$304 NZD
$171 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$304 NZD
$171 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$307 NZD
$173 USD
View
Price last confirmed 30 days ago
Retailer 7
-
$502 NZD
£222 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
$542 NZD
ZAR 4,924 ZAR
View
Price last confirmed 10 days ago
Retailer 9
-
$572 NZD
$322 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$592 NZD
€317 EUR
View
B+
Retailer 11
-
$615 NZD
$346 USD
View
Retailer 12
-
$706 NZD
$397 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$750 NZD
A$649 AUD
View
Retailer 14
-
$775 NZD
A$671 AUD
View
Price last confirmed 7 days ago
Retailer 15
-
$853 NZD
$480 USD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
$924 NZD
$520 USD
View
B
Retailer 17
-
$956 NZD
$538 USD
View
Retailer 18
-
$979 NZD
$551 USD
View
Price last confirmed 8 days ago
Retailer 19
-
$990 NZD
$557 USD
View
Price last confirmed 26 days ago
Retailer 20
-
$1,034 NZD
$582 USD
View
Price last confirmed 7 days ago
Retailer 21
-
$1,078 NZD
$606 USD
View
Price last confirmed 7 days ago
Retailer 22
-
$1,424 NZD
£631 GBP
View
Price last confirmed 8 days ago
Retailer 23
-
$1,598 NZD
£708 GBP
View
Price last confirmed 7 days ago
Most Expensive
Reve Diamonds
AA4628EE7 · Oct 25
$1,771 NZD
$996 USD
View
Price last confirmed 8 days ago
23 more retailers have this diamond
Prices start from $592 NZDSave up to $365 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+
0.51ct Emerald
$592 NZD