Emerald|Lab Grown|IGI

4.21ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG770625758

Certificate IGI LG770625758

Diamond specifications and retailer prices

From $2,125 USD
Save $6,493 USD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,618 USD at Taylor and Hart
View at Taylor and Hart

About this 4.21ct lab-grown emerald diamond

This 4.21ct lab-grown emerald sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770625758 or 770625758. Listed at 14 retailers, with prices from $2,125 to $8,618 at Taylor and Hart, a $6,493 spread on the same certified stone. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.21
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770625758
Dimensions10.90 × 7.47 × 4.97 mm
L/W Ratio1.46
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm7.47 mm4.21 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770625758
Side View
Table 65.0%Crown 36.6°Girdle: MediumPavilion 37.2°Culet: LargeDepth 66.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 29
Current: $2,125 USD|Low: $2,125 USD|High: $9,889 USD|Avg: $5,494 USD|-13.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
September 29, 2026
Retailer 1$2,125 USD
Retailer 9$2,465 USD
Retailer 3$2,657 USD
Retailer 8$2,705 USD
Retailer 5$3,449 USD
Retailer 11$3,522 USD
Retailer 10$4,679 USD
Retailer 6$5,151 USD
Retailer 4$5,835 USD
Retailer 7$6,768 USD
Retailer 2$8,241 USD
Taylor and Hart$8,618 USD

32 data points across 12 retailers

14 retailers$2,125 USD to $8,618 USD

A
Cheapest Retailer
-
$2,125 USD
A
Retailer 2
-
$2,431 USD
View
A
Retailer 3
-
$2,465 USD
View
A
Retailer 4
-
$2,657 USD
View
A
Retailer 5
-
$2,705 USD
View
A
Retailer 6
-
$3,388 USD
View
A
Retailer 7
-
$3,457 USD
£2,722 GBP
View
A
Retailer 8
-
$3,522 USD
View
A
Retailer 9
-
$4,679 USD
£3,684 GBP
View
A
Retailer 10
-
$5,151 USD
ZAR 83,219 ZAR
View
A
Retailer 11
-
$5,835 USD
View
A
Retailer 12
-
$6,768 USD
£5,329 GBP
View
B+
Retailer 13
-
$8,241 USD
SGD 11,137 SGD
View
Most Expensive
B+
Taylor and Hart
DMRG8K7 · Oct 1
$8,618 USD
View
13 more retailers have this diamond
Prices start from $2,125 USDSave up to $6,493 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.

A
4.21ct Emerald
$2,125 USD