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Emerald|Lab Grown|IGI

1.70ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG687549651

Shape and cutting style on the report: Emerald cut

Certificate IGI LG687549651

Diamond specifications and retailer prices

From $323 USD
As of October 27, 2026
Save $3,727 USD (92%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,050 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.7ct lab-grown emerald diamond

This 1.7ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG687549651 or 687549651. Listed at 23 retailers as of October 27, 2026, with prices from $323 to $4,050, a $3,727 spread on the same certified stone. Brilliant Earth lists it at $4,050. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle45°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687549651
Dimensions7.85 × 5.55 × 3.76 mm
L/W Ratio1.41
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.85 mm5.55 mm1.70 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687549651
Side View
Table 66.0%Crown 39.2°Girdle: MediumPavilion 45°Culet: LargeDepth 67.7%

Caratlytics Score

How it works →
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: Oct 27
Current: $4,050 USD|Low: $310 USD|High: $4,330 USD|Avg: $1,183 USD|-6.5%
Brilliant Earth
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
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Retailer 22
October 28, 2026
Retailer 4$323 USD
Retailer 15$361 USD
Retailer 9$375 USD
Retailer 5$401 USD
Retailer 14$401 USD
Retailer 3$540 USD
Retailer 18$555 USD
Retailer 12$666 USD
Retailer 19$672 USD
Retailer 16$689 USD
Retailer 17$711 USD
Retailer 2$934 USD
Retailer 22$963 USD
Retailer 10$1,256 USD
Retailer 6$1,288 USD
Retailer 11$1,333 USD
Retailer 8$1,540 USD
Retailer 21$1,554 USD
Retailer 7$1,587 USD
Retailer 20$1,608 USD
Retailer 13$3,250 USD
Brilliant Earth$4,050 USD

34 data points across 22 retailers

23 retailers$323 USD to $4,050 USD

A
Cheapest Retailer
-
$323 USD
A
Retailer 2
-
$361 USD
View
Final sale: no returns
A
Retailer 3
-
$375 USD
View
A
Retailer 4
-
$401 USD
View
A
Retailer 5
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$401 USD
View
A
Retailer 6
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$540 USD
View
A
Retailer 7
-
$555 USD
View
A
Retailer 8
-
$666 USD
View
A
Retailer 9
-
$672 USD
€640 EUR
View
A
Retailer 10
-
$689 USD
ZAR 11,123 ZAR
View
A
Retailer 11
-
$711 USD
£560 GBP
View
A
Retailer 12
-
$934 USD
A$1,437 AUD
View
A
Retailer 13
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$963 USD
View
B+
Retailer 14
-
$1,256 USD
View
B+
Retailer 15
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$1,288 USD
View
B+
Retailer 16
-
$1,333 USD
View
B+
Retailer 17
-
$1,540 USD
View
B+
Retailer 18
-
$1,554 USD
£1,224 GBP
View
B+
Retailer 19
-
$1,587 USD
View
B+
Retailer 20
-
$1,608 USD
£1,266 GBP
View
B
Retailer 21
-
$3,235 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
$3,250 USD
View
Most Expensive
B
Brilliant Earth
18206701A · Oct 28
$4,050 USD
View
22 more retailers have this diamond
Prices start from $323 USDSave up to $3,727 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
1.70ct Emerald
$323 USD