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Radiant|Natural|GIA

1.77ct D SI2 Radiant Natural Diamond

ID • D/SI2 • GIA 1548098990

Certificate GIA 1548098990

Diamond specifications and retailer prices

From $16,642 AUD
$11,690 USD
As of October 30, 2026
Save $12,960 AUD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $29,602 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.77ct natural radiant diamond

This 1.77ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548098990. Listed at 13 retailers as of October 30, 2026, with prices from $16,642 to $29,602, a $12,960 spread on the same certified stone. NZ Jewellers lists it at $29,602. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.77
Carat
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548098990
Dimensions9.03 × 5.93 × 3.82 mm
L/W Ratio1.52
Top View
9.03 mm5.93 mm1.77 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1548098990
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $29,602 AUD|Low: $15,766 AUD|High: $29,602 AUD|Avg: $20,270 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 7$15,802 AUD
Retailer 8$17,344 AUD
Retailer 11$17,762 AUD
Retailer 9$18,945 AUD
Retailer 12$19,241 AUD
Retailer 10$19,718 AUD
Retailer 13$19,982 AUD
Retailer 2$20,499 AUD
Retailer 3$20,614 AUD
Retailer 4$20,614 AUD
Retailer 5$21,297 AUD
Retailer 6$21,576 AUD
NZ Jewellers$29,602 AUD

40 data points across 13 retailers

13 retailers$16,642 AUD to $29,602 AUD

Retailer 1
-
$15,802 AUD
$11,100 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$16,642 AUD
$11,690 USD
View
B+
Retailer 3
-
$17,344 AUD
$12,183 USD
View
Final sale: no returns
B
Retailer 4
-
$18,945 AUD
$13,308 USD
View
B
Retailer 5
-
$19,241 AUD
$13,516 USD
View
B
Retailer 6
-
$19,718 AUD
$13,851 USD
View
B
Retailer 7
-
$19,982 AUD
$14,036 USD
View
B
Retailer 8
-
$20,499 AUD
£11,338 GBP
View
B
Retailer 9
-
$20,614 AUD
$14,480 USD
View
B
Retailer 10
-
$20,614 AUD
$14,480 USD
View
B
Retailer 11
-
$21,297 AUD
$14,960 USD
View
B
Retailer 12
-
$21,576 AUD
€14,434 EUR
View
Most Expensive
B
NZ Jewellers
2bfbc3be-6e5f-4667-bd6e-49b5a79def50 · Oct 30
$29,602 AUD
$20,794 USD
View
12 more retailers have this diamond
Prices start from $16,642 AUDSave up to $12,960 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.

B+
1.77ct Radiant
$16,642 AUD