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Round|Natural|IGI

1.57ct I VS2 Round Natural Diamond

EX • I/VS2 • IGI 801638071

Shape and cutting style on the report: Round brilliant

Certificate IGI 801638071

Diamond specifications and retailer prices

From $6,698 AUD
$4,705 USD
As of October 28, 2026
Save $5,699 AUD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,949 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.57ct natural round diamond

This 1.57ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 801638071. Listed at 15 retailers as of October 28, 2026, with a 85% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
I
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 801638071
Dimensions7.42 × 7.36 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.42 mm7.36 mm1.57 ctI / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801638071
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.7°CuletDepth 61.8%

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 28
Current: $9,517 AUD|Low: $6,520 AUD|High: $12,480 AUD|Avg: $8,335 AUD|+3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 5$6,698 AUD
Retailer 7$7,146 AUD
Retailer 8$7,253 AUD
Retailer 2$7,653 AUD
Retailer 6$8,479 AUD
Retailer 3$8,493 AUD
Retailer 1$9,517 AUD
Retailer 4$12,397 AUD

39 data points across 8 retailers

15 retailers$6,698 AUD to $12,397 AUD

A
Cheapest Retailer
-
$6,698 AUD
$4,705 USD
A
Retailer 2
-
$6,752 AUD
$4,743 USD
View
A
Retailer 3
-
$7,146 AUD
$5,020 USD
View
Final sale: no returns
A
Retailer 4
-
$7,253 AUD
$5,095 USD
View
A
Retailer 5
-
$7,653 AUD
£4,233 GBP
View
Retailer 6
-
$7,743 AUD
$5,439 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$7,743 AUD
$5,439 USD
View
Price last confirmed 24 days ago
Retailer 8
-
$7,743 AUD
$5,439 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
$7,961 AUD
$5,592 USD
View
A
Retailer 10
-
$8,479 AUD
£4,690 GBP
View
A
Retailer 11
-
$8,493 AUD
€5,682 EUR
View
Retailer 12
-
$8,933 AUD
$6,275 USD
View
Price last confirmed 22 days ago
A
Retailer 13
-
$9,517 AUD
ZAR 107,999 ZAR
View
B+
Retailer 14
-
$12,397 AUD
£6,857 GBP
View
Most Expensive
NZ Jewellers
c2276757-239f-4679-b1ca-8ad45d6df704 · Sep 28
$12,949 AUD
$9,096 USD
View
Price last confirmed 33 days ago
14 more retailers have this diamond
Prices start from $6,698 AUDSave up to $5,699 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
1.57ct Round
$6,698 AUD