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 $160 USD
As of October 24, 2026
Save $836 USD (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $996 USD 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 24, 2026, with prices from $160 to $996, a $836 spread on the same certified stone. Reve Diamonds lists it at $996. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670422659
Dimensions3.78 × 3.78 × 2.57 mm
L/W Ratio1.00
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
3.78 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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 24
Current: $346 USD|Low: $134 USD|High: $1,001 USD|Avg: $434 USD
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Retailer 21
Reve Diamonds
October 28, 2026
Retailer 13$134 USD
Retailer 5$154 USD
Retailer 21$160 USD
Retailer 3$171 USD
Retailer 16$171 USD
Retailer 18$282 USD
Retailer 19$305 USD
Retailer 11$322 USD
Retailer 15$333 USD
Retailer 1$346 USD
Retailer 4$397 USD
Retailer 20$422 USD
Retailer 12$436 USD
Retailer 9$480 USD
Retailer 6$520 USD
Retailer 7$538 USD
Retailer 8$551 USD
Retailer 2$582 USD
Retailer 10$606 USD
Retailer 17$801 USD
Retailer 14$899 USD
Reve Diamonds$996 USD

37 data points across 22 retailers

24 retailers$160 USD to $996 USD

Retailer 1
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$134 USD
Price last confirmed 29 days ago
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Retailer 2
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$160 USD
View
Retailer 3
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$162 USD
View
Price last confirmed 24 days ago
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Retailer 4
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$171 USD
View
A
Retailer 5
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$171 USD
View
Retailer 6
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$173 USD
View
Price last confirmed 27 days ago
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Retailer 7
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$282 USD
£222 GBP
View
Retailer 8
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$305 USD
ZAR 4,924 ZAR
View
Price last confirmed 7 days ago
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Retailer 9
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$322 USD
View
B+
Retailer 10
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$333 USD
€317 EUR
View
B+
Retailer 11
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$346 USD
View
B+
Retailer 12
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$397 USD
View
B+
Retailer 13
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$422 USD
A$649 AUD
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B+
Retailer 14
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$436 USD
A$671 AUD
View
Retailer 15
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$480 USD
View
Price last confirmed 12 days ago
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Retailer 16
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$520 USD
View
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Retailer 17
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$538 USD
View
B+
Retailer 18
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$551 USD
View
Retailer 19
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$557 USD
View
Price last confirmed 23 days ago
B
Retailer 20
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$582 USD
View
B
Retailer 21
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$606 USD
View
B
Retailer 22
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$801 USD
£631 GBP
View
B
Retailer 23
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$899 USD
£708 GBP
View
Most Expensive
B
Reve Diamonds
AA4628EE7 · Oct 25
$996 USD
View
23 more retailers have this diamond
Prices start from $160 USDSave up to $836 USD

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 Emerald
$160 USD