Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 6521686653

Certificate GIA 6521686653

Diamond specifications and retailer prices

From $6,801 USD
As of October 31, 2026
Save $9,141 USD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $15,942 USD at Adiamor · As of October 30, 2026
View at Adiamor

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6521686653. Listed at 22 retailers as of October 30, 2026, with prices from $6,801 to $15,942, a $9,141 spread on the same certified stone. Adiamor lists it at $15,942. 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

1.50
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6521686653
Dimensions8.71 × 6.36 × 4.04 mm
L/W Ratio1.37
Top View
8.71 mm6.36 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521686653
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.6%

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 31
Current: $8,682 USD|Low: $6,784 USD|High: $9,580 USD|Avg: $8,100 USD|-1.7%
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
November 6, 2026
Retailer 4$6,801 USD
Retailer 13$6,809 USD
Retailer 7$7,183 USD
Retailer 12$7,190 USD
Retailer 14$7,305 USD
Retailer 10$7,775 USD
Retailer 3$7,780 USD
Retailer 1$8,682 USD
Retailer 5$8,794 USD
Retailer 2$8,884 USD
Retailer 15$9,246 USD
Retailer 6$9,267 USD
Retailer 8$9,270 USD
Retailer 11$9,270 USD
Retailer 9$9,580 USD

33 data points across 15 retailers

22 retailers$6,801 USD to $15,942 USD

A
Cheapest Retailer
-
$6,801 USD
A
Retailer 2
-
$6,809 USD
View
A
Retailer 3
-
$7,183 USD
View
Final sale: no returns
A
Retailer 4
-
$7,190 USD
View
A
Retailer 5
-
$7,305 USD
View
Retailer 6
-
$7,485 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$7,775 USD
View
A
Retailer 8
-
$7,780 USD
View
Retailer 9
-
$8,612 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$8,682 USD
View
Retailer 11
-
$8,794 USD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
$8,884 USD
View
B+
Retailer 13
-
$9,246 USD
View
B+
Retailer 14
-
$9,270 USD
View
B+
Retailer 15
-
$9,270 USD
View
Retailer 16
-
$9,330 USD
View
Price last confirmed 8 days ago
Retailer 17
-
$9,473 USD
View
Price last confirmed 8 days ago
B+
Retailer 18
-
$9,580 USD
View
B+
Retailer 19
-
$9,583 USD
View
B+
Retailer 20
-
$10,765 USD
View
Retailer 21
-
$15,605 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Adiamor
D-69057583 · Oct 30
$15,942 USD
View
21 more retailers have this diamond
Prices start from $6,801 USDSave up to $9,141 USD

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
1.50ct Oval
$6,801 USD