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Emerald|Lab Grown|IGI

4.51ct D FL Emerald Lab Grown Diamond

EX • D/FL • IGI LG831603917

Shape and cutting style on the report: Emerald cut

Certificate IGI LG831603917

Diamond specifications and retailer prices

From $8,969 AUD
$6,300 USD
As of October 30, 2026
Save $30,761 AUD (77%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $39,730 AUD at With Clarity · As of October 30, 2026
View at With Clarity

About this 4.51ct lab-grown emerald diamond

This 4.51ct lab-grown emerald sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831603917 or 831603917. Listed at 23 retailers as of October 30, 2026, with prices from $8,969 to $39,730, a $30,761 spread on the same certified stone. With Clarity lists it at $39,730. 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

4.51
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831603917
Dimensions11.52 × 7.77 × 4.97 mm
L/W Ratio1.48
Culet sizeLarge
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
11.52 mm7.77 mm4.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831603917
Side View
Table 59.0%Crown 37.2°Girdle: MediumPavilion 40.4°Culet: LargeDepth 64.0%

Caratlytics Score

How it works →
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: $9,327 AUD|Low: $8,969 AUD|High: $41,962 AUD|Avg: $18,689 AUD|-4.9%
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
With Clarity
October 30, 2026
Retailer 2$8,969 AUD
Retailer 1$9,327 AUD
Retailer 14$10,045 AUD
Retailer 11$10,926 AUD
Retailer 9$10,969 AUD
Retailer 8$11,510 AUD
Retailer 10$11,940 AUD
Retailer 16$12,537 AUD
Retailer 18$13,054 AUD
Retailer 3$14,840 AUD
Retailer 7$16,474 AUD
Retailer 5$18,175 AUD
Retailer 12$18,716 AUD
Retailer 13$21,496 AUD
Retailer 6$22,046 AUD
Retailer 4$23,348 AUD
Retailer 15$28,952 AUD
Retailer 19$36,036 AUD
Retailer 17$36,275 AUD
With Clarity$39,730 AUD

34 data points across 20 retailers

23 retailers$8,969 AUD to $39,730 AUD

A
Cheapest Retailer
-
$8,969 AUD
$6,300 USD
A
Retailer 2
-
$9,327 AUD
$6,552 USD
View
Retailer 3
-
$9,895 AUD
$6,951 USD
View
Price last confirmed 38 days ago
A
Retailer 4
-
$10,045 AUD
$7,056 USD
View
Final sale: no returns
A
Retailer 5
-
$10,926 AUD
$7,675 USD
View
A
Retailer 6
-
$10,969 AUD
$7,705 USD
View
Retailer 7
-
$10,969 AUD
$7,705 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
$11,510 AUD
$8,085 USD
View
B+
Retailer 9
-
$11,940 AUD
$8,387 USD
View
B+
Retailer 10
-
$12,537 AUD
HK$68,800 HKD
View
B+
Retailer 11
-
$13,022 AUD
$9,147 USD
View
B+
Retailer 12
-
$13,054 AUD
£7,220 GBP
View
B+
Retailer 13
-
$14,840 AUD
£8,208 GBP
View
B+
Retailer 14
-
$16,474 AUD
$11,572 USD
View
B+
Retailer 15
-
$18,175 AUD
€12,159 EUR
View
B
Retailer 16
-
$18,716 AUD
$13,147 USD
View
B+
Retailer 17
-
$21,496 AUD
$15,100 USD
View
B+
Retailer 18
-
$22,046 AUD
£12,194 GBP
View
B+
Retailer 19
-
$23,348 AUD
ZAR 264,952 ZAR
View
B
Retailer 20
-
$28,952 AUD
$20,337 USD
View
B
Retailer 21
-
$36,036 AUD
$25,313 USD
View
B
Retailer 22
-
$36,275 AUD
SGD 34,434 SGD
View
Most Expensive
B
With Clarity
831603917 · Oct 30
$39,730 AUD
$27,908 USD
View
22 more retailers have this diamond
Prices start from $8,969 AUDSave up to $30,761 AUD

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
4.51ct Emerald
$8,969 AUD