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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 $8,341 NZD
$4,701 USD
As of October 29, 2026
Save $49,040 NZD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $67,654 NZD at Mervis Diamond Importers · As of October 31, 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: $67,654 NZD|Low: $8,007 NZD|High: $67,654 NZD|Avg: $20,574 NZD
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$8,341 NZD
Retailer 7$8,740 NZD
Retailer 6$9,235 NZD
Retailer 9$9,340 NZD
Retailer 18$9,675 NZD
Retailer 15$9,732 NZD
Retailer 14$12,356 NZD
Retailer 8$12,677 NZD
Retailer 2$13,617 NZD
Retailer 3$14,963 NZD
Retailer 12$21,846 NZD
Retailer 11$22,729 NZD
Retailer 13$23,525 NZD
Retailer 4$24,494 NZD
Retailer 5$30,646 NZD
Retailer 10$31,617 NZD
Retailer 17$47,782 NZD
Mervis Diamond Importers$67,654 NZD

44 data points across 18 retailers

24 retailers$8,341 NZD to $57,381 NZD

A
Cheapest Retailer
-
$8,341 NZD
$4,701 USD
A
Retailer 2
-
$8,469 NZD
$4,773 USD
View
A
Retailer 3
-
$8,740 NZD
$4,926 USD
View
A
Retailer 4
-
$9,235 NZD
$5,205 USD
View
A
Retailer 5
-
$9,340 NZD
$5,264 USD
View
Final sale: no returns
A
Retailer 6
-
$9,675 NZD
$5,453 USD
View
Retailer 7
-
$9,675 NZD
$5,453 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$9,732 NZD
$5,485 USD
View
B+
Retailer 9
-
$12,356 NZD
$6,964 USD
View
Retailer 10
-
$12,485 NZD
$7,037 USD
View
Price last confirmed 82 days ago
B+
Retailer 11
-
$12,677 NZD
$7,145 USD
View
B+
Retailer 12
-
$13,617 NZD
£6,043 GBP
View
B+
Retailer 13
-
$14,963 NZD
$8,433 USD
View
B+
Retailer 14
-
$21,846 NZD
£9,695 GBP
View
B+
Retailer 15
-
$22,729 NZD
ZAR 206,948 ZAR
View
Retailer 16
-
$23,525 NZD
A$20,398 AUD
View
Price last confirmed 8 days ago
B
Retailer 17
-
$24,494 NZD
$13,805 USD
View
B
Retailer 18
-
$26,631 NZD
$15,009 USD
View
B
Retailer 19
-
$30,646 NZD
$17,272 USD
View
B
Retailer 20
-
$31,617 NZD
$17,819 USD
View
B
Retailer 21
-
$38,182 NZD
$21,519 USD
View
B
Retailer 22
-
$47,782 NZD
$26,930 USD
View
B
Retailer 23
-
$57,381 NZD
$32,340 USD
View
Most Expensive
Mervis Diamond Importers
1985409141 · Oct 31
$67,654 NZD
$38,130 USD
View
Price under review
23 more retailers have this diamond
Prices start from $8,341 NZDSave up to $49,040 NZD

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
$8,341 NZD