CaratHunter
Plans
Round|Lab Grown|IGI

4.53ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG687528720

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687528720

Diamond specifications and retailer prices

From $6,692 AUD
$4,701 USD
As of October 29, 2026
Save $39,347 AUD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $54,282 AUD at Mervis Diamond Importers · As of October 29, 2026
View at Mervis Diamond Importers

About this 4.53ct lab-grown round diamond

This 4.53ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG687528720 or 687528720. Listed at 24 retailers as of October 29, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.53
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687528720
Dimensions10.57 × 10.63 × 6.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.57 mm10.63 mm4.53 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687528720
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.5%

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 29
Current: $54,282 AUD|Low: $6,425 AUD|High: $54,282 AUD|Avg: $16,507 AUD
Mervis Diamond Importers
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
October 31, 2026
Retailer 16$6,692 AUD
Retailer 7$7,013 AUD
Retailer 6$7,410 AUD
Retailer 9$7,494 AUD
Retailer 18$7,763 AUD
Retailer 15$7,808 AUD
Retailer 14$9,914 AUD
Retailer 8$10,172 AUD
Retailer 2$10,926 AUD
Retailer 3$12,005 AUD
Retailer 12$17,528 AUD
Retailer 11$18,236 AUD
Retailer 13$18,875 AUD
Retailer 4$19,653 AUD
Retailer 5$24,588 AUD
Retailer 10$25,367 AUD
Retailer 17$38,338 AUD
Mervis Diamond Importers$54,282 AUD

44 data points across 18 retailers

24 retailers$6,692 AUD to $46,039 AUD

A
Cheapest Retailer
-
$6,692 AUD
$4,701 USD
A
Retailer 2
-
$6,795 AUD
$4,773 USD
View
A
Retailer 3
-
$7,013 AUD
$4,926 USD
View
A
Retailer 4
-
$7,410 AUD
$5,205 USD
View
A
Retailer 5
-
$7,494 AUD
$5,264 USD
View
Final sale: no returns
A
Retailer 6
-
$7,763 AUD
$5,453 USD
View
Retailer 7
-
$7,763 AUD
$5,453 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
$7,808 AUD
$5,485 USD
View
B+
Retailer 9
-
$9,914 AUD
$6,964 USD
View
Retailer 10
-
$10,017 AUD
$7,037 USD
View
Price last confirmed 82 days ago
B+
Retailer 11
-
$10,172 AUD
$7,145 USD
View
B+
Retailer 12
-
$10,926 AUD
£6,043 GBP
View
B+
Retailer 13
-
$12,005 AUD
$8,433 USD
View
B+
Retailer 14
-
$17,528 AUD
£9,695 GBP
View
B+
Retailer 15
-
$18,236 AUD
ZAR 206,948 ZAR
View
Retailer 16
-
$18,875 AUD
View
Price last confirmed 8 days ago
B
Retailer 17
-
$19,653 AUD
$13,805 USD
View
B
Retailer 18
-
$21,367 AUD
$15,009 USD
View
B
Retailer 19
-
$24,588 AUD
$17,272 USD
View
B
Retailer 20
-
$25,367 AUD
$17,819 USD
View
B
Retailer 21
-
$30,635 AUD
$21,519 USD
View
B
Retailer 22
-
$38,338 AUD
$26,930 USD
View
B
Retailer 23
-
$46,039 AUD
$32,340 USD
View
Most Expensive
Mervis Diamond Importers
1985409141 · Oct 29
$54,282 AUD
$38,130 USD
View
Price under review
23 more retailers have this diamond
Prices start from $6,692 AUDSave up to $39,347 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
4.53ct Round
$6,692 AUD